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Article
Publication date: 1 November 2013

El-Said A.G., Gamal A.M. and Heba F. Mansour

Orange peel (OP) has been considered as an ideal, alternative low-cost, natural waste adsorbent for the removal of textile effluents. The effectiveness of OP in adsorbing C.I…

121

Abstract

Orange peel (OP) has been considered as an ideal, alternative low-cost, natural waste adsorbent for the removal of textile effluents. The effectiveness of OP in adsorbing C.I. Direct Red 79 (DR 79) and C.I. Direct Yellow 27 (DY 27) from their dye baths has been studied in accordance with pH, solid/liquid ratio, agitation time and initial dye concentration. The sorption isotherms are analyzed by using the Langmuir and Freundlich models. The results indicate that acidic solutions support the adsorption of the studied dyes with the use of OP. Adsorption kinetic models are analyzed by using the pseudo-first order, pseudo-second order and intraparticle diffusion equations. The results show that the order equation fits the experimental data very well. The effect of the adsorbent surface is analyzed by using scanning electron microscopy (SEM), with the SEM images showing a reasonable agreement with the adsorption measurements.

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Research Journal of Textile and Apparel, vol. 17 no. 4
Type: Research Article
ISSN: 1560-6074

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Article
Publication date: 1 December 2021

Ibrahim A. Amar, Salma M. Hassan, Fatima H. Aqeela, Mohamed Y. Najem and Fatima A. Altohami

This paper aims to investigate the potential application of Balanites aegyptiaca bark powder (BABP) for removing a basic textile dye, methylene blue (MB), from aqueous solutions.

91

Abstract

Purpose

This paper aims to investigate the potential application of Balanites aegyptiaca bark powder (BABP) for removing a basic textile dye, methylene blue (MB), from aqueous solutions.

Design/methodology/approach

The biosorbent (BABP) was characterized using Fourier transform infrared spectroscopy (FTIR) and point of zero charge (pHPZC). Batch mode was selected to study the biosorption of MB onto BABP surface at different experimental conditions (shaking speed, contact time, initial solution pH, ionic strength, solution temperature, biosorbent dosage and initial dye concentration). Besides, the reusability of BABP for MB biosorption was also examined.

Findings

The biosorption results revealed that approximately 96% of MB was removed successfully at the optimized operational conditions. Pseudo-second-order and Langmuir models, respectively, better described the adsorption kinetics and isotherms. The monolayer biosorption capacity (qmax) for MB was about 97.09 mg/g. According to thermodynamics findings, the MB biosorption onto BABP is an exothermic and spontaneous process. The results demonstrate that BABP can be considered as potential eco-friendly, readily available and low-cost biosorbent for hazardous textile dyes removal from water bodies and also provides a promising method for minimization of agricultural solid wastes (e.g. plant barks).

Originality/value

The utilization of Balanites aegyptiaca bark powder (BABP), solid waste material, as low-cost and eco-friendly biosorbent for the removal of hazardous basic textile dye (methylene blue) from the aquatic environment.

Details

Research Journal of Textile and Apparel, vol. 26 no. 1
Type: Research Article
ISSN: 1560-6074

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Article
Publication date: 19 February 2024

Shimaa S.M. Elhadad, Hany Kafafy, Hamada Mashaly and Ahmed Ali El-Sayed

The purpose of this study is to use liposome technology in the treatment of fabrics textiles because of its efficient energy saving, reducing time and temperature.

70

Abstract

Purpose

The purpose of this study is to use liposome technology in the treatment of fabrics textiles because of its efficient energy saving, reducing time and temperature.

Design/methodology/approach

The newly prepared lecithin liposome was used to encapsulate dyes for the purpose of increasing dyeing affinity. Different ratios of commercially available lecithin liposomes (1%, 3%, 5% and 7%) were used simultaneously in the dyeing of cotton and wool fabrics. The treated fabrics (cotton and wool fabrics) were confirmed using different analytical procedures such as scanning electron microscope (SEM), Fourier-transition infrared spectroscopy, ultraviolet protection factor, colour strength (K|S) measurements and fastness measurements.

Findings

The results show that increasing liposome ratios in dyeing baths leads to increased dyeing affinity for cotton and wool fabrics compared with conventional dyeing without using liposomes. In addition to that, the colour strength values, infrared spectra, SEM and fastness properties of non-liposome-dyed fabrics and liposome-dyed fabrics were investigated.

Originality/value

The research paper provides broad spectrum of green encapsulation fabrics using liposome technology to perform the dye stability, dye strength and fastness.

Details

Pigment & Resin Technology, vol. 54 no. 2
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 5 April 2023

Kriti Priya Gupta and Smriti Pande

The purpose of this paper is to investigate the influencing factors of generation Z (Gen Z) consumers’ revisit intentions to robotic restaurants in the post-pandemic times.

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Abstract

Purpose

The purpose of this paper is to investigate the influencing factors of generation Z (Gen Z) consumers’ revisit intentions to robotic restaurants in the post-pandemic times.

Design/methodology/approach

Using a sample of Gen Z consumers with dining experiences in an Indian restaurant using service robots, the study empirically tests a research framework based on stimulus–organism–response theory.

Findings

The study explains how Gen Z consumer’s perceptions of functional attributes (i.e. perceived usefulness and perceived ease of use), socio-emotional attribute (i.e. perceived safety) and relational attribute (i.e. trust) shape their attitude, which in turn leads to their evaluations of performance outcomes and intention to revisit the robotic restaurants. The findings also indicate that perceived risk reduction of viral infection moderates the impact of performance outcomes on revisit intention.

Originality/value

Due to the outbreak of COVID-19 pandemic, the changing preferences of consumers have resulted in an increase in demand for restaurants offering robotic services. To support the long-term viability of service robots in restaurant services, the current study investigates what elements of service robots can determine consumers’ intentions to revisit the robotic restaurants during post-pandemic times.

Details

Young Consumers, vol. 24 no. 3
Type: Research Article
ISSN: 1747-3616

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Article
Publication date: 9 October 2023

Ing Grace Phang and Yuting Zylvia Kong

Adopting the unified theory of the acceptance and use of technology 2 (UTAUT2) and the theory of substitutability, this study examines both the technical and sensory factors…

264

Abstract

Purpose

Adopting the unified theory of the acceptance and use of technology 2 (UTAUT2) and the theory of substitutability, this study examines both the technical and sensory factors influencing Malaysians' intention to adopt virtual tours (IA) and subsequent intention to visit an actual heritage site (IV) in the heritage traveling decision-making process.

Design/methodology/approach

This study collected a total of 278 valid survey responses via purposive sampling. The data were analyzed using SPSS26 and SmartPLS4 software.

Findings

The findings support the significant positive effect of IA on IV, which supplements evidence to subdue misapprehensions that virtual tours (VTs) are competitors or substitutes for in-person visitations. Perceived substitutability was found to have an indirect impact on IV through IA, further proving the mediating role of IA in influencing IV. Technical and sensory factors, namely performance expectancy, hedonic motivation, habit and perceived substitutability of IA, were shown to be critical in influencing IA; however, effort expectancy, social influence and facilitating conditions were not.

Practical implications

This study offers sustainable and practical implications to the tourism industry as well as potential visitors, who can utilize VTs to determine whether targeted tourism destinations are worthy of investing their resources. The findings suggest that the virtual tour experience contributes to tourists' IV by successfully piquing tourists' interest to physically visit heritage sites in the future. The virtual tour could be utilized to generate demand in times of temporary replacement or closure. Destination marketing organizations and destination management companies should consider the technical and sensory aspects of VTs, specifically prioritizing the hedonic motivation factor.

Originality/value

This study integrates the UTAUT2 and theory of substitutability to shed light on the adoption of technological alternatives in the heritage tourism context. Importantly, this study serves as the pioneer effort in examining the interplay of perceived substitutability in the relationship between IA and IV.

Details

Journal of Hospitality and Tourism Insights, vol. 7 no. 3
Type: Research Article
ISSN: 2514-9792

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Book part
Publication date: 5 August 2022

Fawaz Baddar ALHussan and Faten Baddar AL-Husan

Interpersonal and informal ties and networks, known as wasta in the Arab Middle East region, remain a major force in Middle Eastern societies, determining most economic, social…

Abstract

Interpersonal and informal ties and networks, known as wasta in the Arab Middle East region, remain a major force in Middle Eastern societies, determining most economic, social and political outcomes. Yet the literature on informal ties and networks is largely characterized by a lack of contributions from the Arab world, despite the adverse effect that lack of understanding of the wasta phenomenon is having on the effectiveness of expatriate managers and subsequently on business performance. This chapter therefore aims to shed light on the meaning, characteristics, structure, and role of wasta in establishing and maintaining successful business relationships. It ends with recommendations for foreign investors and international managers who wish to establish and maintain successful business relationships in the Middle East on how to capitalize on interpersonal networks within this process.

Details

Informal Networks in International Business
Type: Book
ISBN: 978-1-83982-878-2

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Article
Publication date: 1 January 1994

S. Abd El Wanees

Corrosion inhibitors are widely used in industry, although in many cases their surface chemistry is not well understood. Several nitrogen‐containing organic compounds have been…

80

Abstract

Corrosion inhibitors are widely used in industry, although in many cases their surface chemistry is not well understood. Several nitrogen‐containing organic compounds have been used as corrosion inhibitors. Corrosion inhibition is a surface process which involves the specific adsorption of inhibitors on the metal surface. The extent of inhibition of metallic corrosion may depend on the nature of the metal surface and extent of adsorption of the inhibitor. The type of interaction of the inhibitor on the metal surface during corrosion has been deduced from its adsorption characteristics.

Details

Anti-Corrosion Methods and Materials, vol. 41 no. 1
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 18 February 2025

Osman Ahmed El-Said, Heba Aziz, Islam Elbayoumi Salem and Marwa Youssif

Aligned with the global commitment to Sustainable Development Goal (SDG) 12: Responsible Consumption and Production, this study investigated the role of mega events in promoting…

0

Abstract

Purpose

Aligned with the global commitment to Sustainable Development Goal (SDG) 12: Responsible Consumption and Production, this study investigated the role of mega events in promoting environmentally sustainable behaviors, with a specific focus on Expo 2020 Dubai.

Design/methodology/approach

The context of the current study is Expo 2020 Dubai. Data was gathered from a convenience sample of 250 Expo 2020 Dubai visitors, and following data screening, the data was analyzed using AMOS 24 software following a two-step approach.

Findings

The study found that the implementation of environmentally sustainable practices significantly explained visitors’ environmental sustainability awareness. Moreover, the implementation of environmentally sustainable practices and environmental sustainability awareness positively influenced visitors’ awareness of consequences. Personal norms were found to be influenced by environmental sustainability awareness and awareness of consequences, while the relationship between the implementation of environmentally sustainable practices and personal norms was found to be insignificant. Finally, all predictors of intention to adopt environmentally sustainable behaviors were significant, with environmental sustainability awareness having the strongest impact, followed by the implementation of environmentally sustainable practices, personal norms and awareness of consequences.

Practical implications

These findings contribute valuable insights into the potential influence of mega events on promoting environmentally sustainable behaviors, with implications for event organizers and policymakers working toward sustainable development objectives.

Originality/value

Despite the significant impact of mega-events, few studies have explored how their sustainability practices affect environmental awareness and behavior. With rising global concern for climate change, examining the role of events like Expo 2020 Dubai in promoting sustainability is crucial. This research addresses this gap by investigating how mega-events can enhance environmental awareness and sustainable behaviors.

Details

International Journal of Event and Festival Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1758-2954

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Article
Publication date: 5 February 2025

Islam Elbayoumi Salem, Rehab El Gamil, Osman Ahmed El-Said and Marwa Youssif

Hotel management and academia are increasingly interested in corporate social responsibility (CSR) and charismatic leadership. In this context, the present study examines how…

2

Abstract

Purpose

Hotel management and academia are increasingly interested in corporate social responsibility (CSR) and charismatic leadership. In this context, the present study examines how charismatic leaders affect employee quality of life through CSR practices in hotels.

Design/methodology/approach

The survey encompassed employees working at either three-star or five-star hotels in Oman. The model was tested using data gathered from 396 hotel employees.

Findings

Results showed that charismatic leadership positively affects CSR-induced intrinsic and extrinsic attributions. CSR positively affected task significance and intrinsic quality and negatively affected turnover intention. Quality of life predictors had a considerable impact, with intrinsic quality and turnover intention standing out. There was no significant effect of task significance on quality of life. The relationship between charismatic leadership and CSR was stronger for employees in five-star hotels and weaker for employees in three-star hotels. The CSR role mediates the relationship between charismatic leadership and quality of life.

Practical implications

The results indicate that charismatic leaders exert a substantial impact on employees’ attributions of CSR. Upper-level management must emphasize fostering the cultivation of charismatic leadership attributes among non-charismatic leaders as a means to enhance employees’ perceptions of CSR.

Originality/value

Few studies have focused on analyzing employees’ perceptions of CSR activities on a micro level. Investigating CSR phenomena in the context of internal stakeholders, especially employees, is very rare.

Details

Journal of Hospitality and Tourism Insights, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9792

Keywords

Available. Open Access. Open Access
Article
Publication date: 27 November 2024

Sridar Ramachandran, Chizoba Kingsley Ugokwe, Khairunnisak Latiff and Mohd Romzee Ibrahim

This paper aims to provide insights into service innovation (SI) during the COVID-19 crisis and its potential impact on tourism development in the medium-to-long term. The…

330

Abstract

Purpose

This paper aims to provide insights into service innovation (SI) during the COVID-19 crisis and its potential impact on tourism development in the medium-to-long term. The pandemic had a devastating effect on the industry, requiring immediate mitigation. It is yet to fully establish the impact of SI in the face of the COVID-19 volatility, uncertainty, complexity and ambiguity (VUCA). This study discusses the potential link between SI and COVID-19 crisis mitigation and offers recommendations for tourism recovery.

Design/methodology/approach

This paper synthesizes empirical evidence on post-crisis tourism SI using a theory-based general literature review approach.

Findings

COVID-19 crisis spun various forms of SI, which emerged as a conventional solution to crisis prevention, encompassing the management of crisis-time competitiveness, revenue deficits and risk perception. However, resistance to innovative services is linked to situational conditions.

Research limitations/implications

COVID-19 is an unprecedented crisis. Therefore, this study serves as a primer for further inquiry into SI. For instance, areas such as governance in tourism innovation and consumers' inclination toward innovation-driven services are underexplored.

Practical implications

SI acts as a situational facilitator, but its characteristics can impede or facilitate adoption. Moreover, the irrelevance of innovations in some environments is evidenced. Thus, practitioners must adopt a responsive learning approach in SI adoption. To mitigate the COVID-19 impacts, reconfiguration in SI, recovery marketing strategy, knowledge gap and governance will be critical interventions.

Originality/value

This paper is one of the first comprehensive discussions on the potential role of SI in mitigating the impact of COVID-19 on the THI.

Details

Journal of Tourism Futures, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2055-5911

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