[1]

Al-Shetwi AQ. 2022. Sustainable development of renewable energy integrated power sector: trends, environmental impacts, and recent challenges. Science of The Total Environment 822:153645

doi: 10.1016/j.scitotenv.2022.153645
[2]

Goodarzi N, Ashrafi-Peyman Z, Khani E, Moshfegh AZ. 2023. Recent progress on semiconductor heterogeneous photocatalysts in clean energy production and environmental remediation. Catalysts 13:1102

doi: 10.3390/catal13071102
[3]

Ng KH, Lai SY, Cheng CK, Cheng YW, Chong CC. 2021. Photocatalytic water splitting for solving energy crisis: myth, fact or busted? Chemical Engineering Journal 417:128847

doi: 10.1016/j.cej.2021.128847
[4]

Fujishima A, Honda K. 1972. Electrochemical photolysis of water at a semiconductor electrode. Nature 238:37−38

doi: 10.1038/238037a0
[5]

Dhiman P, Rana G, Kumar A, Sharma G, Vo DN, et al. 2022. ZnO-based heterostructures as photocatalysts for hydrogen generation and depollution: a review. Environmental Chemistry Letters 20:1047−1081

doi: 10.1007/s10311-021-01361-1
[6]

Wang G, Ling Y, Wang H, Yang X, Wang C, et al. 2012. Hydrogen-treated WO3 nanoflakes show enhanced photostability. Energy & Environmental Science 5:6180−6187

doi: 10.1039/C2EE03158B
[7]

Yuan YJ, Chen D, Yu ZT, Zou ZG. 2018. Cadmium sulfide-based nanomaterials for photocatalytic hydrogen production. Journal of Materials Chemistry A 6:11606−11630

doi: 10.1039/C8TA00671G
[8]

Yang S, Guan H, Zhong Y, Quan J, Luo N, et al. 2021. CdS@Ni3S2 for efficient and stable photo-assisted electrochemical (P-EC) overall water splitting. Chemical Engineering Journal 405:126231

doi: 10.1016/j.cej.2020.126231
[9]

Nasir JA, Rehman ZU, Ali Shah SN, Khan A, Butler IS, et al. 2020. Recent developments and perspectives in CdS-based photocatalysts for water splitting. Journal of Materials Chemistry A 8:20752−20780

doi: 10.1039/D0TA05834C
[10]

Mandal S, Adhikari S, Murmu M, Kim BH, Kim DH. 2025. Graphene and carbon quantum dots: competing carbons in harmonized photoelectrochemical platforms. Small 21:e05846

doi: 10.1002/smll.202505846
[11]

Tian J, Leng Y, Zhao Z, Xia Y, Sang Y, et al. 2015. Carbon quantum dots/hydrogenated TiO2 nanobelt heterostructures and their broad-spectrum photocatalytic properties under UV, visible, and near-infrared irradiation. Nano Energy 11:419−427

doi: 10.1016/j.nanoen.2014.10.025
[12]

Backes CW, Reis FB, Strapasson GB, Assis M, Longo E, et al. 2025. Green synthesis of carbon quantum dots for enhancing photocatalytic activity: hydrogen/oxygen evolution and dye photodegradation. Catalysis Today 443:114996

doi: 10.1016/j.cattod.2024.114996
[13]

Qin J, Zeng H. 2017. Photocatalysts fabricated by depositing plasmonic Ag nanoparticles on carbon quantum dots/graphitic carbon nitride for broad spectrum photocatalytic hydrogen generation. Applied Catalysis B: Environmental 209:161−173

doi: 10.1016/j.apcatb.2017.03.005
[14]

Smrithi SP, Kottam N, Vergis BR. 2022. Heteroatom modified hybrid carbon quantum dots derived from Cucurbita pepo for the visible light driven photocatalytic dye degradation. Topics in Catalysis 68:1427−1438

doi: 10.1007/s11244-022-01581-x
[15]

Kiriyanthan RM, Radha A, Maharajan T, Chellasamy G. 2023. Carbon quantum dots biosynthesis: perspectives and challenges. in Carbon and Graphene Quantum Dots for Biomedical Applications, eds Yun K, Govindaraju S. US: Woodhead Publishing. pp. 9–22 doi: 10.1016/B978-0-323-98362-4.00011-8
[16]

Kang C, Huang Y, Yang H, Yan XF, Chen ZP. 2020. A review of carbon dots produced from biomass wastes. Nanomaterials 10:2316

doi: 10.3390/nano10112316
[17]

Wang Z, Changotra R, Dasog M, Singh Selopal G, Yang J, et al. 2025. Carbon quantum dots: synthesis via hydrothermal processing, doping strategies, integration with photocatalysts, and their application in photocatalytic hydrogen production. Sustainable Materials and Technologies 44:e01386

doi: 10.1016/j.susmat.2025.e01386
[18]

Eastman JW. 1967. Quantitative spectrofluorimetry-the fluorescence quantum yield of quinine sulfate. Photochemistry and Photobiology 6:55−72

doi: 10.1111/j.1751-1097.1967.tb08790.x
[19]

Guan X, Li Z, Geng X, Lei Z, Karakoti A, et al. 2023. Emerging trends of carbon-based quantum dots: nanoarchitectonics and applications. Small 19:2207181

doi: 10.1002/smll.202207181
[20]

Chai YY, Qu DP, Ma DK, Chen W, Huang S. 2018. Carbon quantum dots/Zn2+ ions doped-CdS nanowires with enhanced photocatalytic activity for reduction of 4-nitroaniline to p-phenylenediamine. Applied Surface Science 450:1−8

doi: 10.1016/j.apsusc.2018.04.121
[21]

Gogoi D, Koyani R, Golder AK, Peela NR. 2020. Enhanced photocatalytic hydrogen evolution using green carbon quantum dots modified 1-D CdS nanowires under visible light irradiation. Solar Energy 208:966−977

doi: 10.1016/j.solener.2020.08.061
[22]

Solanki RG, Rajaram P, Bajpai PK. 2018. Growth, characterization and estimation of lattice strain and size in CdS nanoparticles: X-ray peak profile analysis. Indian Journal of Physics 92:595−603

doi: 10.1007/s12648-017-1134-8
[23]

Sami M, El-Khouly ME, Ghali M. 2024. Solvent mediated synthesis of multicolor narrow bandwidth emissive carbon quantum dots and their potential in white light emitting diodes. Scientific Reports 14:24812

doi: 10.1038/s41598-024-75476-0
[24]

Rajamanikandan S, Biruntha M, Ramalingam G. 2022. Blue emissive carbon quantum dots (CQDs) from bio-waste peels and its antioxidant activity. Journal of Cluster Science 33:1045−1053

doi: 10.1007/s10876-021-02029-0
[25]

Guo X, Qing Y, Wu Y, Wu Q. 2016. Molecular association of adsorbed water with lignocellulosic materials examined by micro-FTIR spectroscopy. International Journal of Biological Macromolecules 83:117−125

doi: 10.1016/j.ijbiomac.2015.11.047
[26]

Wang N, Lin J, Li Y, Li T, Chen Y, et al. 2024. One-pot synthesis of high performance CQDs/TiO2 nanocomposites without carbon source addition. Journal of Water Process Engineering 65:105833

doi: 10.1016/j.jwpe.2024.105833
[27]

Shurvell HF. 2006. Spectra– structure correlations in the mid- and far-infrared. In Handbook of Vibrational Spectroscopy, eds Chalmers JM, Griffiths PR. US: John Wiley & Sons, Ltd. doi: 10.1002/0470027320.s4101
[28]

Rao Y, Inwati GK, Singh M. 2021. Green synthesis, structural characterization and application of cadmium sulfide nanocrystals with fluorescent dyes for solar enhancement. Advanced Materials Proceedings 2:223−227

doi: 10.5185/amp.2017/404
[29]

Fadley CS, Shirley DA. 1970. Electronic densities of states from X-ray photoelectron spectroscopy. Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry 74A:543−558

doi: 10.6028/jres.074A.045
[30]

Mahmood A, Shi G, Wang Z, Rao Z, Xiao W, et al. 2021. Carbon quantum dots-TiO2 nanocomposite as an efficient photocatalyst for the photodegradation of aromatic ring-containing mixed VOCs: an experimental and DFT studies of adsorption and electronic structure of the interface. Journal of Hazardous Materials 401:123402

doi: 10.1016/j.jhazmat.2020.123402
[31]

Yu J, Yu Y, Zhou P, Xiao W, Cheng B. 2014. Morphology-dependent photocatalytic H2-production activity of CdS. Applied Catalysis B: Environmental 156–157:184−191

doi: 10.1016/j.apcatb.2014.03.013
[32]

Dager A, Uchida T, Maekawa T, Tachibana M. 2019. Synthesis and characterization of Mono-disperse Carbon Quantum Dots from Fennel Seeds: photoluminescence analysis using Machine Learning. Scientific Reports 9:14004

doi: 10.1038/s41598-019-50397-5
[33]

Moniruzzaman M, Lakshmi BA, Kim S, Kim J. 2020. Preparation of shape-specific (trilateral and quadrilateral) carbon quantum dots towards multiple color emission. Nanoscale 12:11947−11959

doi: 10.1039/D0NR02225J
[34]

Xue J, Fujitsuka M, Majima T. 2019. Shallow trap state-induced efficient electron transfer at the interface of heterojunction photocatalysts: the crucial role of vacancy defects. ACS Applied Materials & Interfaces 11:40860−40867

doi: 10.1021/acsami.9b14128
[35]

Raghavan A, Sarkar S, Nagappagari LR, Bojja S, MuthukondaVenkatakrishnan S, et al. 2020. Decoration of graphene quantum dots on TiO2 nanostructures: photosensitizer and cocatalyst role for enhanced hydrogen generation. Industrial & Engineering Chemistry Research 59:13060−13068

doi: 10.1021/acs.iecr.0c01663
[36]

Chen Y, Zhong W, Chen F, Wang P, Fan J, et al. 2022. Photoinduced self-stability mechanism of CdS photocatalyst: the dependence of photocorrosion and H2-evolution performance. Journal of Materials Science & Technology 121:19−27

doi: 10.1016/j.jmst.2021.12.051
[37]

Meinhardová V, Dubnová L, Drobná H, Matějová L, Kočí K, et al. 2023. Role of lamp type in conventional batch and micro-photoreactor for photocatalytic hydrogen production. Frontiers in Chemistry 11:1271410

doi: 10.3389/fchem.2023.1271410
[38]

Mou Z, Wu Y, Sun J, Yang P, Du Y, et al. 2014. TiO2 nanoparticles-functionalized N-doped graphene with superior interfacial contact and enhanced charge separation for photocatalytic hydrogen generation. ACS Applied Materials & Interfaces 6:13798−13806

doi: 10.1021/am503244w
[39]

Ghosh S, Sarkar D, Bastia S, Chaudhary YS. 2023. Band-structure tunability via the modulation of excitons in semiconductor nanostructures: manifestation in photocatalytic fuel generation. Nanoscale 15:10939−10974

doi: 10.1039/D3NR02116E