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In situ conversion of graphite into graphene quantum dots (GQDs) towards upcycling of spent lithium-ion batteries
DOI: 10.1039/D5GC03503A, PaperAoli Liu, Zelong Dai, Danlin Ouyang, Binod Mahara, Lishan Yang, Xiangping Chen
An upcycling process based on in situ defect utilization to convert spent graphite into high-performance photoluminescent quantum dots through defect-mediated structural reconstitution.
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Swimming upstream – photocatalytic depolymerization of lignosulfonate in seawater
DOI: 10.1039/D5GC03734D, PaperNele Petersen, Silvia Carlotto, Björn B. Beele, Marcella Frauscher, Raphaela Süss, Pascal Olschowski, Girolamo Casella, Adam Slabon, Bruno V. M. Rodrigues
Photocatalytic depolymerization of sodium lignosulfonate in seawater using anthraquinone-2-sulfonate as a catalyst. The presence of salts in seawater stabilizes the catalyst, maintaining its catalytic activity over extended periods.
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Construction and deconstruction: recent advances in degradable silicon-based polymers
DOI: 10.1039/D5GC02535D, Tutorial ReviewXueying Liu, Jakhongir Bekmirzaev, Carine Robert, Régis M. Gauvin, Christophe M. Thomas
This review describes degradable, silicon-based polymers, emphasizing their synthesis, degradation, recyclability, and green chemistry strategies for sustainable material innovation.
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Sustainable high-purity graphite purification via pulsed electrolysis with reduced fluoride consumption
DOI: 10.1039/D5GC02701B, PaperXianglin Liao, Yin Zhao, Yuehua Liu, Yiming Feng, Jingyao Wang, Junhao Liu, Xuzhong Gong
Pulsed electrolysis purification cuts HF acid use by 60% achieving 99.9% graphite purity. By pulsed electrolysis, the cycling mass transfer of ions is enhanced, the usage of fluorine elements is decreased, and the environmental risks are minimized.
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Carbon dot-driven spatial and electronic modulation of Ru on graphene for pH-universal hydrogen evolution reaction electrocatalysts
DOI: 10.1039/D5GC03796D, PaperLiwu Qiang, Meng Bai, Zonghang Liu, Peipei Zhao, Shuai He, Man Zhao, Qinyun Yan, Wei Wen, Qilin Guo, Yanxia Zhang, He Xiao, Jianfeng Jia
Modulation effect of carbon dots on Ru for HER performance and reaction mechanism under full pH range conditions.
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Upcycling of poly(ethylene terephthalate) waste plastics to terephthalonitrile
DOI: 10.1039/D5GC02680F, PaperPhuc T. T. Nguyen, Jiong Cheng, Junyu Mi, Ning Yan
We present a mild (≤120 °C), selective, and low-carbon route for converting poly(ethylene terephthalate) waste plastics into terephthalonitrile, demonstrating plastic upcycling integrated with sustainable nitrogen-containing chemical production.
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Ammonium sulfate (a coking byproduct) downregulates the assimilatory nitrate pathway to save energy for carbon sequestration in Nannochloropsis oceanica at a stable pH using HEPES-NaOH
DOI: 10.1039/D5GC01644D, PaperYing Liu, Xiangjin Liang, Jun Lu, Yapeng Chen, Jun Liu, Baoying Wang, Ruixue Ma, Junchen Xu, Jun Cheng
Transcriptional expression of carbon and nitrogen metabolism in Nannochloropsis oceanica under mixed-mode culture of NH4+ and NO3−.
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The discovery of new metagenomic urethanases utilising a novel colorimetric assay for applications in the biodegradation of polyurethanes
DOI: 10.1039/D5GC03560K, Paper
Open Access 
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Silvia Anselmi, Yeke Ni, Alessia Tonoli, Jingyue Wu, Yu Wang, Luba Prout, Mark Miodownik, Jack W. E. Jeffries, Helen C. HailesNew urethane hydrolytic enzymes have been discovered from a drain metagenome and a novel colorimetric assay established for high-throughput applications.
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Recent progress in Pt-based alloy catalysts: a comprehensive review on green synthesis and sustainable biomass hydrogenation applications
DOI: 10.1039/D5GC03371C, Tutorial ReviewYichen Nie, Misbah Uddin, Qingtao Wang, Xingyong Li, Na Liu, Senshen Yu, Phidsavard Keomeesay, Xuebing Zhao, Yubao Chen, Zhifeng Zheng, Shijie Liu
By alloying multiple metals with Pt and proposing various synthesis strategies, combined with the basic principles of Pt-based alloy catalysts, high-performance catalysts are designed for various biomass hydrogenation applications.
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Tailoring the electronic structure of an Ni2P aerogel via ruthenium doping for energy-efficient hydrogen generation in anion-exchange membrane-based seawater electrolysis
DOI: 10.1039/D5GC03579A, PaperMeitong Zhao, Junwei Yuan, Fan Yang, Hongchen Liu, Xinyang Sun, Yang Sun, Siyuan Sun, Jiahui Liu, Yongfeng Li
A facile synthesis strategy was developed for preparing Ru-Ni2P AG/NF. Its high catalytic performance originated from self-supporting structure, localized electronic structure regulation, and rapid mass transport.
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Valorization of wheat straw to furfural and glucose via ZnCl2/gamma-valerolactone system
DOI: 10.1039/D5GC03724G, PaperYao Liu, Ruonan Zhu, Hui Zhang, Xingjie Wang, Lihong Zhao, Junli Ren, Wei Qi
A ZnCl2 MSH/GVL system fractionates wheat straw (140 °C, 40 min), converting hemicellulose to furfural (67.3% yield) with 98.5% cellulose preservation. Acid-hydrolysis of residue delivers 93.8% glucose in 20 min, eliminating enzymatic steps.
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A donor–π–σ–acceptor strategy in porous polymers for suppression of carrier recombination: boosting photoredox in a Csp2–N radical cross-coupling reaction
DOI: 10.1039/D5GC02546J, PaperJinyang Lu, Lingjuan Zhang, Nan Zhang, Xueying Song, Qi Gao, Jincong Yuan, Xian-Ming Zhang
Incorporating σ linker between the D–π–A heterojunction suppresses photogenerated carrier recombination. ETTA-σ-Im exhibits highly catalytic performance in photooxidative CDC amidation, while facilitating photoreductive O2 to H2O2 production.
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A proposal of twelve principles for LCA of chemicals
DOI: 10.1039/D4GC04844J, Perspective
Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Daniele CespiThis perspective proposes 12 principles for the LCA of chemicals, a list of issues that should be addressed by LCA practitioners, in a procedural way, in order to apply correctly the life cycle perspective within the green chemistry discipline.
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Breaking through acetone inhibition: integrated protein engineering and bioreactor design for sustainable chiral aryl alcohol synthesis
DOI: 10.1039/D5GC02816G, PaperFeng Qian, Yaowu Wang, Zhe Wang, Hanyu Liu, Ying Zhang, Haimin Zhang, Pu Wang
An efficient and eco-friendly strategy combining an engineered carbonyl reductase with an in situ acetone removal bioreactor (EIARB) tackled acetone inhibition during the bioreduction of aryl ketone in a neat isopropanol reaction system.
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Integrating in-vial thin film microextraction using polysiloxane-based adhesive tapes with low-temperature plasma ionization mass spectrometry: A solvent-free approach for determining cocaine and methamphetamine in saliva samples
DOI: 10.1039/D5GC02488A, PaperCarlos Calero-Cañuelo, Rafael Lucena, Soledad Cárdenas
A novel in-vial microextraction technique based on thermal resistant adhesive tapes is presented and its direct coupling to SICRIT-MS is evaluated.
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Nanoscale MOF-derived vacancy-engineered Co2P/N-doped coal-based carbon fibers for boosting hydrogen evolution
DOI: 10.1039/D5GC02573G, PaperMengran Lou, Ruiying Wang, Luxiang Wang, Yang Wang, Mei Wu, Shengjiao Wen, Xia Kong, Taotao Lv, Bo Ma
The precise design of nanoscale metal–organic frameworks enables the fabrication of a self-supported Co2P/nitrogen-doped coal-based carbon fiber catalyst with Co vacancies.
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Phase-segregated PtNi5 rhombic dodecahedra enable excellent electrocatalytic hydrogen evolution in the full pH range
DOI: 10.1039/D5GC03768A, PaperSiyuan Lai, Wendan Jiang, Jingzhe Zhao, Jun Yang, Xiongwu Kang
Ascribed to the Pt-rich vertexes and ridges and Ni-rich facets, phase-segregated PtNi5 rhombic dodecahedral nanocrystals achieve excellent performance in the hydrogen evolution reaction in the full pH range.
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Enhanced protein recovery from Chlorella vulgaris using micro-nanobubble-assisted liquid biphasic flotation
DOI: 10.1039/D5GC01921D, PaperWei Han Foo, Shir Reen Chia, Yu Xuan Lim, Kit Wayne Chew
A micro-nanobubble-assisted liquid biphasic flotation (MNBLBF) system achieves >99% protein recovery from Chlorella vulgaris, leveraging nanobubble stability and high surface charge for efficient bioseparation.
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The solvent miscibility table updated: miscibility and potential applications of green solvents
DOI: 10.1039/D5GC02901E, Communication
Open Access   This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Olga Clavilier, Darragh Foy, Fergal ByrneThe green solvent miscibility table updates the classic table by adding green solvents from the CHEM21 guide. It shows miscibility, partial miscibility, and suggests applications for green solvent pairs.
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Ternary engineered linear polymers with a controllable cascade electron transfer pathway for efficient H2O2 photosynthesis coupled with biomass conversion
DOI: 10.1039/D5GC02197A, PaperXueling Song, Jiani Peng, Xin Li, Pengyan Zhao, Xiaoqin Zhao, Lei Wang
Ternary functionalized PS-TAA-AQ-Ru with a designable cascade electron transfer pathway for the full photocatalytic reaction of H2O2 production and FFA biomass conversion under visible-light irradiation.
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