Table 2.

Top nine articles and citation

S. no	Title	Journal name	Citations
1	Biofuels from microalgae-A review of technologies for production, processing, and extractions of biofuels and co-products	Renewable and Sustainable Energy Reviews	2977
2	Solar absorber material and system designs for photothermal water vaporization towards clean water and energy production	Energy and Environmental Science	522
3	Recovery and recycling of lithium: A review	Separation and Purification Technology	518
4	Biosorption of chromium(VI) from aqueous solutions by green algae Spirogyra species	Water Research	501
5	Transformation of vegetable waste into value added products: (A) the upgrading concept; (B) practical implementations	Bioresource Technology	464
6	Thermolysis of waste plastics to liquid fuel. A suitable method for plastic WTM and manufacture of value added products-A world prospective	Renewable and Sustainable Energy Reviews	431
7	Green supply chain initiatives among certified companies in Malaysia and environmental sustainability: Investigating the outcomes	Resources, Conservation and Recycling	429
8	Waste biorefinery models towards sustainable circular bioeconomy: Critical review and future perspectives	Bioresource Technology	356
9	Removal of malachite green from dye wastewater using neem sawdust by adsorption	Journal of Hazardous Materials	349