Green Strategy Research Articles

Based on magnetically recoverable catalysts: a green strategy to sulfonamides.

The synthesis of sulfonamides, a class of compounds with significant pharmaceutical and medicinal applications, has seen remarkable advancements with the advent of magnetic nanocatalysts. Magnetic nanocomposites are one of the most efficient and widely used catalysts, and they are in complete harmony with the principles of modern green chemistry from the point of view of catalysis. These catalysts, typically composed of metal complexes supported on magnetic nanoparticles, offer unique advantages such as ease of recovery and reusability, which are crucial for sustainable and eco-friendly chemical processes. This review comprehensively examines recent developments in applying magnetic nanocatalysts to prepare sulfonamides. Key focus areas include the design and synthesis of various magnetic nanocatalysts (MNC), their catalytic performance in different reaction conditions, and mechanistic insights into their catalytic activity. By summarizing the latest research and technological advancements, this article aims to provide a valuable resource for researchers and practitioners in catalysis and pharmaceutical chemistry.

Modern-Day Green Strategies for the Removal of Chromium from Wastewater

Chromium is an essential element in various industrial processes, including stainless steel production, electroplating, metal finishing, leather tanning, photography, and textile manufacturing. However, it is also a well-documented contaminant of aquatic systems and agricultural land, posing significant economic and health challenges. The hexavalent form of chromium [Cr(VI)] is particularly toxic and carcinogenic, linked to severe health issues such as cancer, kidney disorders, liver failure, and environmental biomagnification. Due to the high risks associated with chromium contamination in potable water, researchers have focused on developing effective removal strategies. Among these strategies, biosorption has emerged as a promising, cost-effective, and energy-efficient method for eliminating toxic metals, especially chromium. This process utilizes agricultural waste, plants, algae, bacteria, fungi, and other biomass as adsorbents, demonstrating substantial potential for the remediation of heavy metals from contaminated environments at minimal cost. This review paper provides a comprehensive analysis of various strategies, materials, and mechanisms involved in the bioremediation of chromium, along with their commercial viability. It also highlights the advantages of biosorption over traditional chemical and physical methods, offering a thorough understanding of its applications and effectiveness.

Environmental Awareness and Green Trust Mediating Green Marketing’s Impact on Coconut Coir Product Purchases Behavior

Recent years have seen a notable shift in consumer behavior towards sustainability, driven by heightened environmental awareness. This shift has significantly influenced purchasing decisions, particularly regarding green products like coconut coir-based items, valued for their eco-friendliness, biodegradability, and versatility. As consumers become more knowledgeable about environmental issues, they increasingly seek products that align with their values, leading to the rise of green marketing strategies. This research examines the role of environmental awareness and green trust in mediating the impact of green marketing on the purchasing behavior of coconut coir products. Utilizing both primary and secondary data, the study collected responses from 179 participants through a structured survey. Data analysis was performed using Partial Least Square Structural Equation Modeling (PLS-SEM) with SMART PLS 3.0 software. The analysis included two measurement models: the outer model assessed the validity and reliability of latent variables, while the inner model evaluated the relationships between them. Findings reveal that green marketing significantly enhances green buying behavior, environmental awareness, and green trust. Specifically, green marketing positively impacts purchasing behavior through both environmental awareness and green trust. In conclusion, this research demonstrates that green marketing effectively influences consumer behavior towards sustainable products. By fostering environmental awareness and building consumer trust, green marketing not only encourages the purchase of eco-friendly products but also contributes to a larger cultural shift towards sustainability.

Incorporating tiny forests in the neighbourhood of Singapore - Opportunities and Challenges

‘Tiny forests’ have gained traction across the globe as a promising solution for restoring natural ecosystems and enriching biodiversity in highly urbanized areas. In land scarce cities, planting forests could mitigate the impacts of climate change and other urban socio-ecological challenges. This article investigates the potential for tiny forests to be part of the greening strategy in Singapore – a compact city that is already championing greening initiatives. Using a case study of the Jurong West neighbourhood, we conducted a survey aiming to understand people's perceptions and use of urban nature. We complement these results with a rapid assessment of land availability confirming the feasibility of implementing tiny forests in Singapore. From the survey, we found that residents were receptive to the idea of having nature closer to their residential areas despite highlighting disadvantages such as undesirable insects and animals. Factors such as minimal spatial requirements and planting methods that enhance trees growth make tiny forest a useful part of the landscaping portfolio to achieve national greening principles. Overall, we find that tiny forests have the potential to become part of the city-state's greening strategies.

Deep eutectic supramolecular polymers based HPLC stationary phase: Green synthesis strategy and promising application prospects

BackgroundDeep eutectic solvents (DESs) have been widely and significantly applied in various fields due to their outstanding features such as low cost, easy preparation and good biodegradability. As novel derivatives of DESs, deep eutectic supramolecular polymers (DESPs) combine the macroscopic state of DESs with the covalent interactions of supramolecular polymers, which also possess the properties of DESs as multifunctional materials. Therefore, DESPs are believed to be promising candidates for separation science. However, there are no studies on the application of DESPs as stationary phases for HPLC analysis. ResultsIn this work, a novel DESP based HPLC stationary phase (Poly(DES)@SiO2) was developed for the first time through a green synthesis method by using DES as the polymerization monomer as well as the reaction medium. The results manifest that this novel Poly(DES)@SiO2 column can well interact with analytes through various mechanisms, and realize selective separation of a wide range of structurally similar hydrophilic/hydrophobic substances. More importantly, the separation of hydrophobic analytes on the Poly(DES)@SiO2 column is less time-consuming with fewer organic eluent, although the column efficiency is slightly lower than that of commercial C18 column. Furthermore, the Poly(DES)@SiO2 column exhibits excellent mechanical stability and satisfactory separation repeatability for steroid hormones. Therefore, a reliable method was established for detecting steroid hormones in actual samples with the recoveries ranging from 94.56 % to 103.84 %, which can meet the detection needs of commonly seen steroid hormones in food and the environment. SignificanceIn summary, this work provides some valuable theoretical references for the synthesis of new DESP based stationary phases through a green and facile strategy, and meanwhile, verifies the feasibility of DESP for effective HPLC separations. In addition, the promising application prospect of DESP based stationary phases in the analysis of complex samples has also been demonstrated, expanding the potential application of DES in separation science.

The effect of ESG ratings on corporate green innovation strategies: evidence from China

Environmental, social, and governance (ESG) approaches have gained popularity in academia and are typically linked to corporate green innovation. Although some scholars argue that corporate green innovation is merely greenwashing carried out in reaction to market pressure from ESG ratings, most research conducted thus far has shown that ESG exerts a beneficial influence on increasing corporate green innovation outputs overall. This study's analysis of panel data from Chinese A-share listed enterprises from 2010 to 2019 demonstrates that, while ESG ratings increase the likelihood of incremental green innovation in areas of current knowledge, they diminish the percentage of exploratory green patents. The managerial myopia brought about by ESG ratings is a key mechanism leading to this result. Extensive study indicates that analysts and managers who pay greater attention to environmental issues may be able to alleviate the negative effects of ESG scores on managerial myopia and company’s incremental green innovation practices.

Green synthesis of zinc oxide nanoparticles doped Leucas aspera leaf extract and its photocatalytic applications

Zinc oxide (ZnO) nanoparticles have been produced from the leaf extract of Leucas aspera by utilising a straight forward co-precipitation technique in a green synthesis strategy. The produced nanoparticles are examined by photocatalytic analysis, FTIR, XRD, UV–visible, and SEM. ZnO-related distinctive peaks were visible in the FTIR spectra. The XRD investigation verifies that the produced nanoparticles have a hexagonal crystal structure. Doped ZnO utilising leaf extract has surface morphology that is practically spherical in shape and has minimal aggregation, according to SEM analysis. ZnO-LA composite's photocatalytic dye degradation effectiveness against visible light irradiations is approximately 83%.

Pre- and post-harvest aflatoxin contamination and management strategies of Aspergillus spoilage in East African Community maize: review of etiology and climatic susceptibility.

Globally, maize (Zea mays L.) is deemed an important cereal that serves as a staple food and feed for humans and animals, respectively. Across the East African Community, maize is the staple food responsible for providing over one-third of calories in diets. Ideally, stored maize functions as man-made grain ecosystems, with nutritive quality changes influenced predominantly by chemical, biological, and physical factors. Food spoilage and fungal contamination are convergent reasons that contribute to the exacerbation of mycotoxins prevalence, particularly when storage conditions have deteriorated. In Kenya, aflatoxins are known to be endemic with the 2004 acute aflatoxicosis outbreak being described as one of the most ravaging epidemics in the history of human mycotoxin poisoning. In Tanzania, the worst aflatoxin outbreak occurred in 2016 with case fatalities reaching 50%. Similar cases of aflatoxicoses have also been reported in Uganda, scenarios that depict the severity of mycotoxin contamination across this region. Rwanda, Burundi, and South Sudan seemingly have minimal occurrences and fatalities of aflatoxicoses and aflatoxin contamination. Low diet diversity tends to aggravate human exposure to aflatoxins since maize, as a dietetic staple, is highly aflatoxin-prone. In light of this, it becomes imperative to formulate and develop workable control frameworks that can be embraced in minimizing aflatoxin contamination throughout the food chain. This review evaluates the scope and magnitude of aflatoxin contamination in post-harvest maize and climate susceptibility within an East African Community context. The paper also treats the potential green control strategies against Aspergillus spoilage including biocontrol-prophylactic handling for better and durable maize production.

Consumers' green product purchase intention considering para-social interaction: An experimental study based on live-streaming e-commerce

Although live-streaming e-commerce plays an important role in promoting green consumption, there are still some obstacles to turning awareness into action. Consumers often weigh personal benefits against social benefits when making green purchasing decisions. Should streamers emphasize personal or social benefits when recommending green products? Which method of expression has better marketing effects? To address these questions, this study explores the impact of the interaction between green product message framing and benefit appeals on consumers' purchase intention and its internal mechanisms through two experiments and explores the moderating role of streamer traits based on para-social interaction theory. The results show that: (1) The interaction effects of green product message framing and benefit appeals impact consumers' green purchase intentions. (2) Green product utility perception and environmental self-responsibility mediate green product purchase intention. (3) Para-social interaction moderates the effects of green product message framing and benefit appeals on purchase intention. This research provides valuable insights for live-streaming e-commerce and related enterprises to optimize green marketing strategies and promote green consumption.

Green chemistry-based strategies for liquid-phase microextraction and determination of mercury species

Green chemistry-based strategies for liquid-phase microextraction and determination of mercury species

The Mitigating Effect of Green Space's Spatial and Temporal Patterns on the Urban Heat Island in the Context of Urban Densification: A Case Study of Xi'an

Growing evidence highlights a strong link between urban densification and urban heat island (UHI) effects. However, there is a lack of research on time-based analyses of urban green space spatial patterns using urban densification indices to mitigate UHI effects. Addressing this gap, this study focuses on the central district of Xi'an, utilizing urban density data, MODIS LST products, and Landsat series imagery. The Coordination Coupling Degree Model (CCDM) is applied to longitudinally assess the mitigating effects of urban green space spatial patterns on UHI under different scales of spatial densification. The CCDM results show a significant overall improvement in the coordination coupling degree between green space spatial indices and LST in Xi'an's central district from 2013 to 2023. However, variations across administrative districts suggest that regional planning policies have differentially influenced green space patterns and UHI effects over time. Furthermore, a global negative correlation between the urban densification index and changes in the coordination coupling degree indicates that continued urbanization in Xi'an's central district could exacerbate the urban thermal environment. This study provides valuable insights into green space planning and UHI mitigation strategies in the context of urban densification.

Fostering a Sustainable Future in Somalia: Examining the Effects of Industrialization, Energy Consumption, and Urbanization on Environmental Sustainability

While existing research has extensively explored the individual impacts of energy consumption, industrialization, and urbanization on environmental sustainability, there remains a notable gap in understanding the synergistic effects of these factors within the context of rapidly developing regions, such as Somalia. Therefore, this study explores the impacts of energy consumption, industrialization, and urbanization on environmental sustainability in Somalia from 1990 to 2020. The long-run linkage among the variables of the study was confirmed using the bounds-testing approach. The findings from the ARDL model indicate that economic growth, energy consumption, and trade openness significantly exacerbate environmental pollution in Somalia in the short- and long-run. Conversely, while industrialization and urbanization reduce environmental pollution both the short- and long-run, urbanization does not demonstrate a statistically significant impact. The long-run findings of the study were validated using the DOLS and FMOLS approaches. The Granger causality analysis reveals unidirectional causalities from environmental pollution to GDP per capita, industrialization, and trade openness, as well as from energy consumption to environmental degradation. However, no causal linkage is detected between urbanization and environmental pollution within Somalia. Based on the results of the study, we propose the promotion of renewable energy sources, green industrialization strategies, urban planning and sustainable development, and enhanced monitoring and regulation to effectively address environmental degradation.

From Carbon Capture to Cash

This research unravels the strategic confluence of environmental leadership and cutting-edge Artificial Intelligence (AI) in the realm of Carbon Capture technology, and their combined effect on the financial fortitude of U.S. firms. It posits that a firm's environmental vision, when led by transformative green leadership, significantly propels the effective adoption of Carbon Capture solutions. Drawing on data from 145 publicly traded U.S. entities from the years 2017 to 2019, provided by the Carbon Disclosure Project and Compustat, this study meticulously explores the interrelation between a firm's environmental initiatives - including managerial focus, shared vision, proactive green strategies, and innovation—and its performance outcomes. The findings illuminate that while environmental commitments like management focus and a unified vision greatly encourage the embracement of Carbon Capture, the financial implications of these adoptions present a complex picture.

The TOR signalling pathway in fungal phytopathogens: A target for plant disease control.

Plant diseases caused by fungal phytopathogens have led to significant economic losses in agriculture worldwide. The management of fungal diseases is mainly dependent on the application of fungicides, which are not suitable for sustainable agriculture, human health, and environmental safety. Thus, it is necessary to develop novel targets and green strategies to mitigate the losses caused by these pathogens. The target of rapamycin (TOR) complexes and key components of the TOR signalling pathway are evolutionally conserved in pathogens and closely related to the vegetative growth and pathogenicity. As indicated in recent systems, chemical, genetic, and genomic studies on the TOR signalling pathway, phytopathogens with TOR dysfunctions show severe growth defects and nonpathogenicity, which makes the TOR signalling pathway to be developed into an ideal candidate target for controlling plant disease. In this review, we comprehensively discuss the current knowledge on components of the TOR signalling pathway in microorganisms and the diverse roles of various plant TOR in response to plant pathogens. Furthermore, we analyse a range of disease management strategies that rely on the TOR signalling pathway, including genetic modification technologies and chemical controls. In the future, disease control strategies based on the TOR signalling network are expected to become a highly effective weapon for crop protection.

Synthesis of bis-Chalcones Based on Green Chemistry Strategies and Their Cytotoxicity Toward Human MeWo and A375 Melanoma Cell Lines.

Chalcone is an aromatic ketone that forms the central core of many important biological compounds. Chalcone derivatives show various biological activities, especially anti-inflammatory, antibacterial, antioxidant, and anticancer activities, and also inhibit melanoma cell growth. In this study, we synthesized chalcone compounds with bis-chalcone's chemical structure under microwave (MW) and microwave-ultrasound (MW-US) conditions and compared them to chalcones produced using the classical synthesis method. All bis-chalcones were synthesized with terephthalaldehyde and an appropriate aromatic ketone as substrates in Claisen-Schmidt condensation. All the obtained compounds were tested regarding their roles as potential anticancer agents. The cytotoxic effect of the bis-chalcones against human MeWo and A375 melanoma cell lines was investigated through colorimetric MTT and SRB assays. The data were analyzed statistically. In the case of the synthesis of bis-chalcones, it was determined that the use of green conditions supported by the MW or MW-US factors led to an increase in the yield of the final products and a reduction in the reaction time compared to the classic method. The biological results showed the high cytotoxic effect of bis-chalcones. The present results show the compounds' high antiproliferative and cytotoxic potential, especially for the two selected bis-chalcone derivatives (3b and 3c), in particular, at concentrations of 50 μM-200 μM at 24, 48 h, and 72 h of incubation. The use of MW and US for the synthesis of bis-chalcones significantly improved the process compared to the classical method. The derivatives containing two hydroxy and two methoxy groups were the most effective against the tested cancer cells.

Developing Green Marketing Strategies: A Comprehensive Analysis of Consumer Behaviour and Business Practices

The purpose of this research is to examine the relationship between green marketing communication techniques, consumer behaviour patterns, and business organisations’ practices by employing both qualitative and quantitative methodologies. A hypothesized quantitative survey with 500 consumers and a qualitative case study of leading organisations to assess modern tendencies and approaches were carried out. The quantitative analysis shows that 70% of the consumers take environmental concern while purchasing products, but only 45% are ready to pay the premium price for green products. Moreover, there is a low level of confidence in green claims where only 30% of the consumers are confident that firms have sincere intentions about the statements they make. An analysis of Nike, Starbucks, and Toyota, Apple, and Microsoft organizations shows that they incorporate different strategies in supply chain management, carbon footprint, corporations’ responsibility, and customer relations. Some of these firms focus on the promotion of the company’s transparency, product sourcing based on an ethical approach, encouragement of the use of renewables, as well as community involvement in fulfilling sustainable objectives. Thus, the study also stresses the importance of clarity within communication channels and information reliability for the development of consumers’ trust. It defines factors like the cost and every person’s doubt or disbelief in what is green that prevents an extensive use of green products. Altogether, this research contributes useful knowledge for companies wanting to implement suitable green marketing initiatives that would be appealing to eco-aware consumers. It is clear that implementing corporate practice according to the customer expectation and practicing transparency would not only increase the brand value but also the customer loyalty and which in longer runs would also help in supporting and implementing sustainable development goals across the world.

One-step construction of silver nanoparticles immersed hydrogels by triple-helix β-glucans and the application in infectious wound healing

Hydrogels composed of polysaccharides and silver nanoparticles (AgNPs) are widely recognized for their application in wound dressings, particularly for healing wounds prone to infection. Traditional methods for preparing AgNP-immersed hydrogels are often complex, costly, and may lead to sustained cytotoxicity. To address these challenges, we developed a biocompatible, one-step green reduction strategy to generate AgNPs within hydrogels using a triple-helix β-glucan (PCPA) derived from Poria cocos, a renowned Chinese traditional herb. PCPA serves as a reducing agent, converting silver ions into AgNPs while its triple-helix conformation prevents AgNP aggregation. The resulting hydrogel (PAg-G) is injectable and contains uniformly distributed AgNPs. PAg-G exhibits broad-spectrum antimicrobial activity and enhanced bioactivity. The in vivo studies on S.aureus-infected SD rats demonstrated that PAg-G accelerates wound healing within 12 days by down-regulating inflammatory factors such as IL-6 and TNF-α, and up-regulating VEGF and CD31 expression, promoting neovascularization in wound tissues. This innovative one-step construction of AgNP-immersed hydrogels offers a promising approach for the development of antimicrobial hydrogels, especially for treating bacterial-infected wounds.

Evaluation of Green Strategies for Prolonging the Lifespan of Linear Wireless Sensor Networks.

Battery-powered sensor nodes encounter substantial energy constraints, especially in linear wireless sensor network (LWSN) applications like border surveillance and road, bridge, railway, powerline, and pipeline monitoring, where inaccessible locations exacerbate battery replacement challenges. Addressing these issues is crucial for extending a network's lifetime and reducing operational costs. This paper presents a comprehensive analysis of the factors affecting WSN energy consumption at the node and network levels, alongside effective energy management strategies for prolonging the WSN's lifetime. By categorizing existing strategies into node energy reduction, network energy balancing, and energy replenishment, this study assesses their effectiveness when implemented in LWSN applications, providing valuable insights to assist engineers during the design of green and energy-efficient LWSN monitoring systems.

Canada’s Green Strategy as a Factor in Countering Global Challenges

Canada, like many other countries, is increasingly focusing on transition to a green economy, realizing the problems associated with climate change, carbon emissions and the growing need for energy conservation. Canada is a large country with huge resources and potential for the development of a green economy. The Canadian approach to implementing a green strategy based on clean technologies and best production methods is comprehensively explored. Key government policies and programs to stimulate the development of green sectors of the economy, reduce greenhouse gas emissions and combat climate change are analyzed. The main projects and initiatives aiming to accelerate the transition to renewable energy sources and increase the level of energy efficiency, as well as measures to stimulate environmental consumption among the population and attract foreign investment in the field of green economy, were studied. The role of provinces, territories and municipalities in the development of a green economy are also discussed.

Systematic Exploration of the Green Transformation Path of Liaoning's Industrial Structure Driven by Cross-Border E-Commerce

Driven by globalization and digitalization, cross-border e-commerce has become an important force to promote the optimization and upgrading of economic structure. Taking Liaoning as an example, this paper explores how to promote the transformation of industrial structure to a green and sustainable direction through the development of cross-border e-commerce. This paper analyzes the current situation of Liaoning's industrial structure, points out the existing problems and challenges, and puts forward a green transformation strategy based on cross-border e-commerce.