This study extends prior work by developing a comprehensive framework examining how leadership and organizational learning facilitate the achievement of high performance in organizations. Following ...quantitative approach, this study used survey questionnaire to collect data from leaders in the tourism sector. SmartPLS was applied to perform PLS-SEM statistical techniques with 638 responses collected. The findings revealed that high performance of tourism firms was directly and indirectly affected by leadership traits, leadership competencies, complexity leadership and organizational learning. This study has a significant contribution to leadership, organizational learning, and organizational high performance literature by providing a comprehensive framework of the relationships among these phenomena. Significant implications for both theory and practice were provided.
In this study, InVO4 was effectively hybridized with g-C3N4 to create InVO4/g-C3N4 Z-scheme heterojunction. Ag metals were also successfully decorated on the InVO4/g-C3N4 to further improve its ...photocatalytic performance for tetracycline degradation. Scavenger experiments were conducted to investigate photocatalytic degradation mechanism of the synthesized materials. The characterization and experimental results showed that InVO4 and g-C3N4 would absorb incident visible light to induce electrons to their conduction band (CB) leaving holes at their valence band (VB). Then, photo-induced electrons in the InVO4 CB would move to the g-C3N4 VB to recombine with its holes leading to preservation of photo-induced electrons at the g-C3N4 CB, which has high reduction potential, and holes in the InVO4 VB, which has high oxidation potential, for effective degradation of tetracycline. When Ag metals were decorated on InVO4/g-C3N4, plasmon resonance of Ag would effectively increase light absorption and induce electron-hole separation of the InVO4 as well as the g-C3N4. The decorated Ag also acted as charge mediator to enhance electron transfer from the InVO4 CB and the g-C3N4 VB to improve electron-hole separation or photocatalytic efficiency of the InVO4/g-C3N4. Therefore, the Ag decorated on InVO4/g-C3N4 (AIC) presented novel photocatalytic performance for degradation of tetracycline. Finally, the regenerating experiment results indicated that the AIC could be effectively regenerated after being used.
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•Successfully established InVO4/g-C3N4 Z-scheme heterojunction.•Successfully decorated Ag on InVO4/g-C3N4 to further enhance its photocatalytic activity.•The Ag decorated on InVO4/g-C3N4 showed novel photocatalytic activity for TC degradation.•The synthesized photocatalyst exhibited novel stability and regenerating ability.
In the past few decades, fruits have been increasingly consumed, leading to an increase in global fruit production. However, fresh produce is susceptible to large losses during production and ...preservation. In the postharvest preservation stage, fruits undergo various technical treatments for maintaining their quality. A widely adopted technology is the application of edible coatings, which can be applied to a diverse range of fruits to regulate the exchange of moisture and gases between the fruit and its environment. In addition, edible coatings provide a significant benefit by allowing the integration of different active ingredients into the coating’s matrix, meaning that these substances will associate with and possibly be eaten together with the fruit. This would help improve the organoleptic and nutritional qualities of the fruit as well as the shelf life. This paper provides an overview of the available data on the typical components used in coating matrix, focusing on the effect of the material combinations and application techniques to fruit properties. The processors can use this knowledge in choosing a suitable coating material and concentration for various fresh and fresh-cut fruits. Additionally, this paper reviews recent developments and limitations in utilizing edible coatings for prolonging the shelf-life of fruits.
Purpose
This paper aims to synthesize existing knowledge on high performance organization (HPO) in terms of definitions, contemporary trends and findings from empirical studies; from which areas for ...future research can be proposed.
Design/methodology/approach
This systematic literature review applies the matrix method to analyze major HPO literature in peer-reviewed English articles. A total of 73 articles have been found in 59 journals.
Findings
There are three key findings that emerged from this study. First, the research on HPO has been burgeoned in the past decades, generating several compelling studies in different contexts. The trend of HPO research is now shifting from theory development to theory validation. Second, HPO has been defined in various ways in the extant literature. However, they all address the importance of aligning the firms’ resources with the market demand and integrating various types of performance to measure HPO relative to competitors for a prolonged period. Third, an assessment of empirical HPO studies revealed gaps in terms of the research context, research design and the HPO’s nomological network.
Research limitations/implications
The literature search in this review targeted at only articles published in the English language; therefore, publications in other languages were not included.
Originality/value
The strength of this study is that it provided an updated systematic review of HPO literature, is therefore, valuable in providing an overall picture of the current state of HPO research and providing potential directions for future studies.
PurposeThis study investigates how to foster innovation and high performance through leadership competences (result-oriented, cognitive, interpersonal) in the context of tourism firms in Vietnam ...during COVID-19 pandemic.Design/methodology/approachQuantitative approach and survey questionnaire were applied to collect data from managerial executives working at different tourism establishments in Vietnam. A total of 638 responses were analyzed using partial least square-structural equation modeling (PLS-SEM) technique.FindingsThe findings revealed that all three leadership competencies affected almost all factors of business innovation. However, leaders' interpersonal competence was not related to process innovation and leaders' result-oriented competence was not associated with organizational innovation. Furthermore, leaders' result-oriented competence, product innovation, and process innovation were found to directly enhance organizational performance.Practical implicationsThis study proposed some suggestions for tourism leaders in exhibiting appropriate leadership competences and fostering business innovation to drive their firms towards superior performance.Originality/valueAchieving high performance is always a priority goal of many firms; therefore, several attempted have been made to address several factors affecting organizational performance. This study provides a more nuanced picture of the relationships between the leadership competences, business innovation, and high performance of tourism firms.
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•Synthesized Ta3N5 and V–Ta3N5 successfully converted CO2 to valuable fuels.•V dopant enhanced electron–hole separation and prolonged its lifetime.•V–Ta3N5 exhibited great increases ...in light adsorption and decreases in band gap energy.•V–Ta3N5 reduced CO2 and H2O vapor to CH4, CO, O2, and H2 even under visible light.•A V/Ta ratio of 2wt.% was optimal for enhancing the photocatalytic activity of Ta3N5.
In this study, Ta3N5 and V-doped Ta3N5 (V–Ta3N5) were synthesized as catalysts for the conversion of CO2 into valuable fuels under visible light. As compared with Ta2O5, the synthesized Ta3N5 and V–Ta3N5 exhibited great increases in visible light adsorption and decreases in band gap energy. Therefore, the synthesized Ta3N5 and V–Ta3N5 photocatalytically converted CO2 into CO and CH4 even under visible light. The V dopants, which existed in the Ta3N5 lattice, could act as an intermediate band (V3d) between the valence band (N2p) and the conduction band (Ta5d) of the Ta3N5 to increase the electron–hole separation efficiency of the photocatalyst. Thus, the photocatalytic activity of V–Ta3N5 was much higher than that of Ta3N5. However, an increase in the V doping ratio led the formation of VN particles distributed on the Ta3N5 surface. The formed particles eclipsed the light reaching the photocatalyst surface, resulted in a decrease in photocatalytic activity. The optimal V doping ratio in V–Ta3N5 was found to be 2wt.%. As a result, the production rates of CH4, CO, O2, and H2 generated from the photocatalytic reduction of CO2 by 2wt.% V–Ta3N5 under visible light were 425, 236, 1003, and 56µmolg−1cath−1, respectively.
This study aims to conduct a systematic literature review (SLR) of the entrepreneurial ecosystem (EE) to synthesize and advance the knowledge of how it is investigated and evolved in the previous ...periods. This study pursues the PRISMA method to review selected EE research and the work of Garrard is applied to construct a SLR matrix to analyze EE literature in peer-reviewed English publication. A total of 100 studies published in 58 journals between 1993 and 2021 were gathered and evaluated. The results indicate three major findings. First, the research on EE has been emerged in the past decades. Second, EE has been defined in several ways and sectors, but the common definition of EE can be expressed through five criteria. Third, the most well-known theory, framework, and measurement of EE are clarified, while the nomological network of EE research was concurrently developed providing the summary of what has been examined. This study provides crucial implications for both theory and practice. In theoretical context, this study gives an updated summary of the trends of EE research; the most popular definition, theory framework, measurement, and nomological network of EE; and the agenda for future research; providing comprehensive overview of EE research and generates new insights for further research in this field. In practice, this study stimulates the awareness of the governors, managers, and other stakeholders of a specific region on building a healthy and effective EE and provides them the methods to improve the EE to generate successful entrepreneurship.
In the study, we successfully conducted vanadium doping to improve photocatalytic performance of the CuWO4 for water splitting to produce hydrogen. The doping mechanism, optimal doping ratio and ...material stability were investigated by various characterization methods and water splitting experiments. We found that the V substituted several W elements of the CuWO4 crystal. In the V–CuWO4, V dopant existed in form of the V5+, which created new energy level between the conduction band (CB) and the valence band (VB) of the CuWO4 to improve charge transfer as well as to prevent the e− and h+ recombination of the material. The substitution of W by V dopant also led the formation of Cu+ and W5+ in the CuWO4 crystal. The formation of Cu+ and W5+ in the CuWO4 crystal not only narrowed the energy band gap but also increased the CB potential of the material. Therefore, the V–CuWO4 generated significant amount of e− under visible light and the generated e− was strong enough to react with H+ to produce H2. The optimal V/W ratio for maximum improving photocatalytic performance of the CuWO4 was 6 wt%. Finally, we investigated that our prepared V–CuWO4 showed high stability during long-term water splitting process.
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•Successfully doped V into CuWO4 crystal to enhance its photocatalytic performance.•V dopant prevented recombination of photo-excited e− and h+ of the CuWO4.•V doping narrowed the band gap energy and increased the CB potential of the CuWO4.•The V–CuWO4 exhibited excellent photocatalytic water splitting for hydrogen production.•The optimal mole ratio of V/W in the V–CuWO4 for water splitting was 6%.
In the study, we doped N into TiO2 lattice to narrow its band gap energy. Then, the synthesized N doped TiO2 material was combined with AgI to form AgI/N–TiO2 (ANT) direct Z scheme materials. The ...synthesized materials were utilized for photocatalytic removal of tetracycline (TC) using visible irradiation as an excitation source. We also conducted radical scavenging experiments to determine photocatalytic degradation mechanism. We investigated that these photo-excited electrons (e−) in N–TiO2 conduction band tended to combine with the left holes (h+) in AgI valence band maintaining h+ in the valence band of the N–TiO2 and e− in the conduction band of the AgI. The remained e− and h+ have high redox potential to initiate for photocatalytic decomposition of TC. Thus, the TC degradation by the ANT materials were significant greater than those by single components (AgI or N–TiO2). We also investigated that the TC degradation by the ANT-30 material, which the AgI: N–TiO2 molar ratio was 30%, exhibited that highest degradation efficiency. Finally, the ANT photocatalyst exhibited excellent stability during TC degradation processes supporting for its promising potential application in practical systems.
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