Themed collection 2025 Green Chemistry Reviews


The importance of indirect hotspots when prioritizing research in green chemical synthesis
An indirect hotspot is a process step that may cause little harm on its own but has a strong influence on a very harmful tstep (the direct hotspot) and thereby the total harm of the process.
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D5GC01085C

Realizing CO2 emission reduction in lime and soda ash manufacturing through anion exchange
Co-production of lime and soda ash through the anion exchange process is economically sustainable and can immediately reduce global CO2 emissions by 37 Mt.
Green Chem., 2025,27, 3431-3442
https://doi.org/10.1039/D4GC05568C

A call for frugal modelling: two case studies involving molecular spin dynamics
Molecular magnetism and computational chemistry examples of frugal modelling as a tool to prioritize energy-efficient algorithms to minimize resource intensive operations.
Green Chem., 2025,27, 3167-3177
https://doi.org/10.1039/D4GC04900D
Research progress on the preparation of lignin micro/nano-particles and their biomedical applications
Physical, chemical, and biological methods can prepare core-shell structured LMNPs. The cube in the figure symbolizes their diverse biomedical applications, with its height indicating the breadth of these applications.
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D5GC00178A
Magnetic field-assisted photocatalytic CO2 reduction
This review aims to gain an in-depth understanding of the specific mechanisms underlying the magnetic field effect, and amplifying the advantages of magnetic-field-assisted photocatalytic technology in elevating the CO2 reduction efficiency.
Green Chem., 2025,27, 4489-4503
https://doi.org/10.1039/D4GC05810K
Sustainable bioplastics build on D-xylose cores: from backup to the center stage
This review focuses on advances in bioplastics built on a D-xylose core, and points the way for their current challenges and future opportunities.
Green Chem., 2025,27, 4464-4488
https://doi.org/10.1039/D4GC06578F
Green Innovations in C–H Bond Functionalisation: Exploring Homogeneous Recyclable Catalytic Systems
Green Chem., 2025, Accepted Manuscript
https://doi.org/10.1039/D5GC00278H
Sonochemistry and sonocatalysis: current progress, existing limitations, and future opportunities in green and sustainable chemistry
The integration of nanostructured catalytic cavitation agents, microfluidic solutions, and computational molecular modelling forms a trilateral synergistic platform that unlocks new potential of sonocatalysis in green and sustainable chemistry.
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D5GC01098E
Demystify the unique hydrogen spillover effect in electrocatalytic hydrogen evolution
Hydrogen spillover, involving active H species migration between high- and weak-affinity sites, gains attention for its unique mechanism and accelerated kinetics.
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D4GC05909C
Machine learning-driven design of single-atom catalysts for carbon dioxide valorization to high-value chemicals: a review of photocatalysis, electrocatalysis, and thermocatalysis
The research about photocatalytic, electrocatalytic, and thermocatalytic CO2 reduction, with single-atom catalysts (SACs).
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D5GC00739A

Evaluating the path to sustainability: SWOT analysis of safe and sustainable by design approaches for metal–organic frameworks
SWOT analysis of MOFs through the lens of safe and sustainable by design (SSbD) framework, highlighting their potential, challenges, and future directions (Prepared using Biorender Software).
Green Chem., 2025,27, 3815-3850
https://doi.org/10.1039/D5GC00424A

Organonitrogen platform chemicals and pharmaceutical precursors: a perspective on sustainable chitin utilization
Chitin is a sustainable source of naturally-fixed nitrogen. This review explores advances in converting chitin into nitrogen-containing compounds, emphasizing progress in synthesizing benzenoid aromatics and highlighting future prospects.
Green Chem., 2025,27, 3601-3626
https://doi.org/10.1039/D4GC05368K
Upgrading of waste polyolefins with non-noble metal catalysts
Waste polyolefins are efficiently upgraded into value-added products through hydrocracking, hydrolysis and tandem catalytic processes with non-noble metal catalysts.
Green Chem., 2025,27, 3398-3412
https://doi.org/10.1039/D4GC06105E
Electrophotochemical ligand-to-metal charge transfer catalysis: an emerging platform for sustainable synthesis
We highlight the advancements toward electrophotochemical ligand-to-metal charge transfer (LMCT) catalysis, which has contributed to advancing sustainable radical chemistry by exploiting both visible light and electricity as clean energy inputs.
Green Chem., 2025,27, 3413-3430
https://doi.org/10.1039/D5GC00186B

The origin, composition, and applications of industrial humins – a review
Humins are side-products derived from the acid-catalysed conversion of carbohydrate-containing biomass, including sugars (e.g. glucose, fructose, sucrose), oligo-, polysaccharides, and lignocellulosic feedstocks into HMF, furfural and levulinic acid.
Green Chem., 2025,27, 3136-3166
https://doi.org/10.1039/D4GC06244B

‘Green’ synthesis of amines from renewable resources? A detailed analysis of case studies using the CHEM21 green metrics toolkit
Green amine synthesis is assessed using the CHEM21 green metrics toolkit, offering a step-by-step guide for sustainability evaluation and promoting environmentally conscious transformations.
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D5GC00924C
Biodegradable microbeads for personal care products and cosmetics
The materials, preparation methods, properties, and applications of biodegradable microbeads in personal care products and cosmetics.
Green Chem., 2025,27, 2823-2845
https://doi.org/10.1039/D4GC05852F
Recent advances in ex ante techno-environmental-economic assessment of thermochemical waste or biomass to energy technologies based on process simulation
The based ex-ante techno-environmental-economic assessment based on process simulation can predict the performance based on the exiting laboratory- or pilot-scale experiment results and provide multidimensional quantified guidance.
Green Chem., 2025,27, 2846-2899
https://doi.org/10.1039/D4GC06016D
Biosynthesis of polyhydroxyalkanoates (PHAs) from organic waste-derived volatile fatty acids (VFAs)
This paper summarizes the recent advances in the biosynthesis of polyhydroxyalkanoates (PHAs) from organic waste-derived volatile fatty acids (VFAs).
Green Chem., 2025,27, 1939-1968
https://doi.org/10.1039/D4GC05125D
Valorization of harmful substances in the chemical recycling of polyvinyl chloride
This feature article provides a comprehensive summary of the valorization of substances in the chemical recycling of polyvinyl chloride.
Green Chem., 2025,27, 1909-1938
https://doi.org/10.1039/D4GC05075D
A comparative review of biohydrogen and biomethane production from biowaste through photo-fermentation
This review compares biohydrogen and biomethane production via photo-fermentation, emphasizing their complementary roles as sustainable bioenergy sources.
Green Chem., 2025,27, 1331-1347
https://doi.org/10.1039/D4GC06079B
Lignin valorization through microbial production of polyhydroxyalkanoates: Recent trends, challenges and opportunities
Green Chem., 2025, Accepted Manuscript
https://doi.org/10.1039/D5GC00370A
Sustainable routes for the synthesis of a nitrogen-containing furan derivative, 3-acetamido-5-acetylfuran
Production of 3-acetamido-5-acetylfuran from renewable chitin resources.
Green Chem., 2025,27, 4423-4437
https://doi.org/10.1039/D5GC00356C
Evoking research attention back on liquid hot water pretreatment: a comprehensive review
A review examining recent advances in liquid hot water pretreatment science to propel future studies is presented.
Green Chem., 2025,27, 4408-4422
https://doi.org/10.1039/D5GC00219B

Examining the potential of type V DESs for the solvent extraction of metal ions
The potential of hydrophobic type V DESs for the liquid–liquid separation of metal ions is reviewed along with the properties relevant to their application and their potential advantages and limitations compared to conventional solvent extraction.
Green Chem., 2025,27, 4438-4463
https://doi.org/10.1039/D5GC00489F
Synthesis of value-added N-containing aromatic products from lignins: a review.
Green Chem., 2025, Accepted Manuscript
https://doi.org/10.1039/D5GC00061K
Green solvents in hydroformylation-based processes and other carbonylation reactions
Green solvents enhance the sustainability of hydroformylation and other carbonylation reactions by reducing environmental impact, improving safety, and enabling more efficient, eco-friendly catalytic processes.
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D5GC00451A
Sustainable thermochemical plastic valorization towards a circular economy: a critical review
Emerging technologies-empowered thermochemical plastic valorization is developed for value-added products in green and practical manner, which are beneficial to achieving circular plastic economy and several UN sustainable development goals.
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D4GC06070A
Recent developments in recycling of post-consumer polyethylene waste
This review provides a comprehensive summary of the recycling of postconsumer polyethylene waste, including various mechanical and chemical recycling processes, while highlighting their advantages and future development prospects.
Green Chem., 2025,27, 4040-4093
https://doi.org/10.1039/D4GC06566B
Technological advances in ligninolytic enzymes for the biological valorization of lignin
Cutting-edge technologies for the biological valorization of lignin.
Green Chem., 2025,27, 4016-4039
https://doi.org/10.1039/D4GC05724D
Harnessing the potential of biphasic solvent systems in lignocellulosic biomass fractionation through computational insights
This review analyzes biphasic fractionation of lignocellulose using statistical analysis and DFT simulations, focusing on enzymatic hydrolysis, phase roles, solvent-catalyst impacts, and biphasic system sustainability with its industrial potential.
Green Chem., 2025,27, 4094-4127
https://doi.org/10.1039/D4GC05977H
Recent advances in heterogeneous catalysts for biocrude hydrodeoxygenation
The synergistic interaction between acid and metal sites in the hydrodeoxygenation of biocrude oil model compounds.
Green Chem., 2025,27, 3375-3397
https://doi.org/10.1039/D4GC05059B
Co-pyrolysis of biomass and plastic waste into carbon materials with environmental applications: a critical review
This article presents a novel strategy for co-pyrolyzing biomass and plastic waste to produce advanced carbon materials. It systematically evaluates the reaction mechanisms, process dynamics, environmental benefits, and sustainable materials.
Green Chem., 2025, Advance Article
https://doi.org/10.1039/D4GC04842C
Rapid humification of biomass via hydrothermal conversion: a comprehensive review
Biomass (biowaste) can be converted into humic acid via hydrothermal humification under specific conditions, demonstrating significant application potential in agriculture, environmental management and materials science.
Green Chem., 2025,27, 1588-1603
https://doi.org/10.1039/D4GC05362A
About this collection
Welcome to our online collection of Green Chemistry Review articles. Here we feature Critical reviews, Tutorial reviews and Perspective articles published in 2025.
For more information about the different review types, please go to https://rsc.li/greenchem
Congratulations to all the authors whose articles are featured and we hope readers enjoy this collection.