Dyes adsorption using clay and modified clay: A review

The World Health Organization declared COVID-19 a global pandemic on the 11th of March 2020, but the world is still reeling from its aftermath. Originating from China, cases quickly spread across the globe, prompting the implementation of stringent measures by world governments in efforts to isolate cases and limit the transmission rate of the virus. These measures have however shattered the core sustaining pillars of the modern world economies as global trade and cooperation succumbed to nationalist focus and competition for scarce supplies. Against this backdrop, this paper presents a critical review of the catalogue of negative and positive impacts of the pandemic and proffers perspectives on how it can be leveraged to steer towards a better, more resilient low-carbon economy. The paper diagnosed the danger of relying on pandemic-driven benefits to achieving sustainable development goals and emphasizes a need for a decisive, fundamental structural change to the dynamics of how we live. It argues for a rethink of the present global economic growth model, shaped by a linear economy system and sustained by profiteering and energy-gulping manufacturing processes, in favour of a more sustainable model recalibrated on circular economy (CE) framework. Building on evidence in support of CE as a vehicle for balancing the complex equation of accomplishing profit with minimal environmental harms, the paper outlines concrete sector-specific recommendations on CE-related solutions as a catalyst for the global economic growth and development in a resilient post-COVID-19 world.

A critical analysis of the impacts of COVID-19 on the global economy and ecosystems and opportunities for circular economy strategies

Feasibility of industrial-scale treatment of dye wastewater via bio-adsorption technology

In a time of unprecedented change in environmental, geopolitical and socio-economic world affairs, the search for new energy materials has become a topic of great relevance. Sodium borohydride, NaBH 4 , seems to be a promising fuel in the context of the future hydrogen economy. NaBH 4 belongs to a class of materials with the highest gravimetric hydrogen densities, which has been discovered in the 1940s by Schlesinger and Brown. In the present paper, the most relevant issues concerning the use of NaBH 4 are examined. Its basic properties are summarised and its synthesis methods are described. The general processes of NaBH 4 oxidation, hydrolysis, and monitoring are reviewed. A comprehensive bibliometric analysis of the NaBH 4 publications in the energy field opens the discussion for current perspectives and future outlook of NaBH 4 as an efficient energy/hydrogen carrier. Despite the observed exponential increase in the research on NaBH 4 it is clear that further efforts are still necessary for achieving significant overchanges.

Sodium borohydride as a fuel for the future

A review on hydrogen generation from the hydrolysis of sodium borohydride

A critical review of pretreatment technologies to enhance anaerobic digestion and energy recovery

Plasma-surface modification on bentonite clay to improve the performance of adsorption of methylene blue

Chlorella vulgaris microalgae strain modified with zinc chloride as a new support material for hydrogen production from NaBH4 methanolysis using CuB, NiB, and FeB metal catalysts

Evaluating organic waste sources (spent coffee ground) as metal-free catalyst for hydrogen generation by the methanolysis of sodium borohydride

Production of metal-free catalyst from defatted spent coffee ground for hydrogen generation by sodium borohyride methanolysis

Mustafa Kaya

Papers

A critical review of pretreatment technologies to enhance anaerobic digestion and energy recovery

Plasma-surface modification on bentonite clay to improve the performance of adsorption of methylene blue

Chlorella vulgaris microalgae strain modified with zinc chloride as a new support material for hydrogen production from NaBH4 methanolysis using CuB, NiB, and FeB metal catalysts

Evaluating organic waste sources (spent coffee ground) as metal-free catalyst for hydrogen generation by the methanolysis of sodium borohydride

Production of metal-free catalyst from defatted spent coffee ground for hydrogen generation by sodium borohyride methanolysis