[1]. Yoong L.S., Chong F. K. and Dutta B. K., “Development of copper-doped TiO2 photocatalyst for hydrogen production under visible light,” Energy, Vol. 34, No. 10, pp. 1652-1661, 2009. ##
[2]. Li H. and Cui X., “A hydrothermal route for constructing reduced graphene oxide/TiO2 nanocomposites: Enhanced photocatalytic activity for hydrogen evolution,” Int. J. Hydrogen Energy, Vol. 39, No. 35, pp. 19877-19886, 2014. ##
[3]. Xu S., Ng J., Du A., Liu J. and Sun D., “Highly efficient TiO2 nanotube photocatalyst for simultaneous hydrogen production and copper removal from water,” Int. J. Hydrogen Energy., Vol. 36, No. 11, pp. 6538-6545, 2011.##
[4]. Xu S., Ng J., Zhang X., Bai H. and Sun D., “Fabrication and comparison of highly efficient Cu incorporated TiO2 photocatalyst for hydrogen generation from water,” Int. J. Hydrogen Energy., Vol. 35, No. 11, pp. 5254-5261, 2010.##
[5]. Long L., Li J. Wu L. and Li X., “Enhanced photocatalytic performance of platinized CdS/TiO2 by optimizing calcination temperature of TiO2 nanotubes,” Mat. Sci. Semicon. Proc., Vol. 26, pp. 107-111, 2014. ##
[6]. Dubey N., Rayalu S., Labhsetwar N. K. and Decotta S., “Visible light active zeolite-based photocatalysts forhydrogen evolution from water,” Int J Hydrogen Energy., Vol. 33, No. 21, pp. 5958-5966, 2008.##
[7]. Kudo A. and Miseki Y., “Heterogeneous photocatalyst materials for water splitting,” Chem. Soc. Rev., Vol. 38, No. 1, pp. 253-278, 2009.##
[8]. Ismail A. A. and Bahnemann D. W., “Photochemical splitting of water for hydrogen production by photocatalysis: A review,” Sol. Energ Mat. Sol. C., Vol. 128, pp. 85-101, 2014. ##
[9]. Kitano M. and Hara M., “Heterogeneous photocatalytic cleavage of water,” J. Mater Chem., Vol. 20, No. 4, pp. 627-641, 2010.
[10]. Navarro R. M., Sanchez M. C., Alvarez-Galvan M. C., Valle F. and Fierro J. L. G., “Hydrogen production from renewable sources: biomass and photocatalytic opportunities,” Energy Environ Sci., Vol. 2, No. 1, pp. 35-54, 2009.##
[11]. Ni M., Leung M. K. H., Leung D. Y. C. and Sumathy K., “A review and recent developments in photocatalytic water-splitting using for hydrogen production,” Renew Sust. Energ. Rev., Vol. 11, No. 3, pp. 401-425, 2007. ##
[12]. Dubey N., Nitin K. L., Sukumar D. and Sadhana S. R., “Hydrogen evolution by water splitting using novel composite zeolite-based photocatalyst,” Catal. Today. Vol. 129, No. 3-4, pp. 428-434, 2007. ##
[13]. Jiang C., Lee K. Y., Parlett C. M. A., Bayazit M. K., Lau C. C., Ruan Q., Moniz S. J. A., Lee A. F. and Tang J., “Size-controlled TiO2 nanoparticles on porous hosts for enhanced photocatalytic hydrogen production,” Appl. Catal. A: Gen., Vol. 521, pp. 133-139, 2016. ##
[14]. Wang C., Shi, H. and Li Y., “Synthesis and characterization of natural zeolite supported Cr-doped TiO2 photocatalysts,” Appl. Surf Sci., Vol. 258, No. 10, pp. 4328-4333, 2012.##
[15]. Sun Q., Hu X., Zheng S., Sun Z., Liu S. and Li H., “Influence of calcination temperature on the structural, adsorption and photocatalytic properties of TiO2 nanoparticles supported on natural zeolite,” Powder Technol., Vol. 274, pp. 88-97, 2015.##
[16]. Chica A., “Zeolites: promised materials for the sustainable production of hydrogen,” ISRN Chem. Eng., Vol. 2013, p. 19, 2013.
[17]. Baerlocher C., Meier W. M. and Olson D. H., “HEU, in Atlas of Zeolite Framework Types,” Elsevier: Amsterdam. pp. 146-147, 2001. ##
[18]. Rahmani F., Haghighi M. and Amini M., “The beneficial utilization of natural zeolite in preparation of Cr/clinoptilolite nanocatalyst used in CO2-oxidative dehydrogenation of ethane to ethylene,” J. Ind. Eng. Chem., Vol. 31, pp. 142-155, 2015.##
[19]. Ates A. and Hardacre C., “The effect of various treatment conditions on natural zeolites: Ion exchange, acidic, thermal and steam treatments,” J. Colloid Interface Sci., Vol. 372, No. 1, pp. 130-140, 2012. ##
[20]. Erdoğan Alver B., “A comparative adsorption study of C2H4 and SO2 on clinoptilolite-rich tuff: Effect of acid treatment,” J. Hazard Mater, Vol. 262, pp. 627-633, 2013. ##
[21]. Lin H., Liu Q. L., Dong Y., He Y. H. and Wang L., “Physicochemical properties and mechanism study of clinoptilolite modified by NaOH,” Micropor Mesopor Mat., Vol. 218, pp. 174-179, 2015.##
[22]. Rahmani F., Haghighi M. and Mahboob S., “CO2-enhanced dehydrogenation of ethane over sonochemically synthesized Cr/clinoptilolite-ZrO2 nanocatalyst: Effects of ultrasound irradiation and ZrO2 loading on catalyticactivity and stability,” Ultrason Sonochem., Vol. 33, pp. 150-163, 2016. ##
[23]. Nezamzadeh Ejhieh A. and Zabihi Mobarakeh H., “Heterogeneous photodecolorization of mixture of methylene blue and bromophenol blue using CuO-nano-clinoptilolite,” J. Ind. Eng. Chem., Vol. 20, No. 4, pp. 1421-1431, 2014.##
[24]. Park M., Kwak B. S., Jo S. W. and Kang M., “Effective CH4 production from CO2 photoreduction using TiO2/x mol% Cu–TiO2 double-layered films,” Energ Convers Manage., Vol. 103, pp. 431-438, 2015. ##
[25]. Wang C., Shi H. and Li Y., “Synthesis and characteristics of natural zeolite supported Fe+3-TiO2 photocatalysts,” Appl. Surf. Sci., Vol. 257, No. 15, pp. 6873-6877, 2011. ##
[26]. Rivera A., Farias T., Menorval L., Autie-Castro G., Yee-Madeira H., Contreras J. L. and Autie Perez M., “Acid natural clinoptilolite: Structural properties against adsorption/separation of n-paraffins,” J. Colloid Interface Sci., Vol. 360, No. 1, pp. 220-226, 2011.##
[27]. Li J., Li X., Zhou G., Wang W., Wang C., Komarneni S. and Wang Y., “Catalytic fast pyrolysis of biomass with mesoporous ZSM-5 zeolites prepared by desilication with NaOH solutions,” Appl. Surf Sci., Vol. 470, pp. 115-122, 2014.##
[28]. Garcia Basabe Y., Rodriguez-Iznaga I., de Menorval L. C., Liewellyn P., Maurin G., Lewis D. W., Binions R., Autie M. amd Ruiz Salvador A. R., “Step-wise dealumination of natural clinoptilolite: Structural and physicochemical characterization,” Micropor Mesopor Mat., Vol. 135, No. 1-3, pp. 187-196, 2010. ##
[29]. Akgül M. and Karabakan A., “Promoted dye adsorption performance over desilicated natural zeolite,” Micropor Mesopor Mat., Vol. 145, No. 1-3, pp. 157-164, 2011. ##
[30]. Mohamed R. M., Ismail A. A., Othman I. and Ibrahim I. A., “Preparation of TiO2-ZSM-5 zeolite for photodegradation of EDTA,” J. Mol. Catal. A: Chem., Vol. 238, No. 1-2, pp. 151-157, 2005. ##
[31]. Zabihi Mobarakeh H. and Nezamzadeh Ejhieh A., “Application of supported TiO2 onto Iranian clinoptilolite nanoparticles in the photodegradation of mixture of aniline and 2, 4-dinitroaniline aqueous solution,” J. Ind. Eng. Chem., Vol. 26, pp. 315-321, 2015. ##
[32]. Shirsath S. R., Pinjari D. V., Gogate P. R., Sonawane S. H. and Pandit A. B., “Ultrasound assisted synthesis of doped TiO2 nano-particles: Characterization and comparison of effectiveness for photocatalytic oxidation of dyestuff effluent,” Ultrason Sonochem., Vol. 20, No. 1, pp. 277-286, 2013. ##
[33]. Wang C. and Li Y., “Preparation and characterisation of S doped TiO2/natural zeolite with photocatalytic and adsorption activities,” Mater. Technol., Vol. 29, No. 4, pp. 204-209, 2014. ##
[34]. Wu N. L. and Lee M. S., “Enhanced TiO2 photocatalysis by Cu in hydrogen production from aqueous methanol solution,” Int. J. Hydrogen Energy., Vol. 29, No. 15, pp. 1601-1605, 2004. ##
[35]. Badawy M. I., Ghaly M. Y. and Ali M. E. M., “Photocatalytic hydrogen production over nanostructured mesoporous titania from olive mill wastewater,” Desalination, Vol. 267, No. 2-3, pp. 250-255, 2011. ##
[36]. Mahalakshmi M., Vishnu P. S., Arabindoo B., Palanichamy M. and Murugesan V., “Photocatalytic degradation of aqueous propoxur solution using TiO2 and Hβ zeolite-supported TiO2,” J. Hazard Mater, Vol. 161, No. 1, pp. 336-343, 2009. ##
[37]. Sreethawong T., Junbua C. and Chavadej S., “Photocatalytic H2 production from water splitting under visible light irradiation using Eosin Y-sensitized mesoporous-assembled Pt/TiO2 nanocrystal photocatalyst,” J. Power Sources, Vol. 190, No. 2, pp. 513-524, 2009. ##
[38]. Yan Z., Yu X., Zhang Y., Jia H., Sun Z. and Du P., “Enhanced visible light-driven hydrogen production from water by a noble-metal-free system containing organic dye-sensitized titanium dioxide loaded with nickel hydroxide as the cocatalyst,” Appl. Catal. B: Environ., Vol. 160-161, pp. 173-178, 2014. ##
[39]. Patsoura A., Kondarides D. I. and Verykios X. E., “Enhancement of photoinduced hydrogen production from irradiated Pt/TiO2 suspensions with simultaneous degradation of azo-dyes,” Appl. Catal. B: Environ, Vol. 64, No. 3-4, pp. 171-179, 2006. ##
[40]. Patsoura A., Kondarides D. I. and Verykios X. E., “Photocatalytic degradation of organic pollutants with simultaneous production of hydrogen,” Catal. Today., Vol. 124, No. 3-4, pp. 94-102, 2007. ##
[41]. Sharma S., Pai M. R., Kaur G., Divya Satsangi V. R., Dass S. and Shrivastav R., “Efficient hydrogen generation on CuO core/AgTiO2 shell nano-hetero-structures by photocatalytic splitting of water,” Renew Energ., Vol. 36, pp. 1202-1216, 2019. ##
[42]. Wei X., Shao C., Li X., Lu N. Wang K., Zhang Z. and Liu Y., “Facile in situ synthesis of plasmonic nanoparticles-decorated g-C3N4/TiO2 heterojunction nanofibers and comparison study of their photosynergistic effects for efficient photocatalytic H2 evolution,” Nanoscale, Vol. 8, No. 21, pp. 11034-11043, 2016. ##
[43]. Solakidou M., Giannakas A., Georgiou Y., Boukos N., Louloudi M. and Deligiannakis Y., “Efficient photocatalytic water-splitting performance by ternary CdS/Pt-N-TiO2 and CdS/Pt-N,F-TiO2: Interplay between CdS photo corrosion and TiO2-dopping,” Appl. Catal. B: Environ, Vol. 254, pp. 194-205, 2019. ##
[44]. Akbari Sene R., Moradi G. R. and Sharifnia S., “Sono-dispersion of TiO2 nanoparticles over clinoptilolite used in photocatalytic hydrogen production: Effect of ultrasound irradiation during conventional synthesis methods,” Ultrason Sonochem., Vol. 37, pp. 490-501, 2017. ##
[45]. Enzweiler H., Yassue Cordeiro P. H., Schwaab M., Barbosa Coutinho E., Olse S. and Fernandes N. R. C., “Evaluation of Pd-TiO2/ZSM-5 catalysts composition effects on hydrogen production by photocatalytic water splitting,” Int. J. Hydrogen Energy., Vol. 43, No. 13, pp. 6515-6525, 2018. ##
[46]. Xu D., Hai Y., Zhang X., Zhang S. and He R., “Bi2O3 cocatalyst improving photocatalytic hydrogen evolution performance of TiO2,” Appl. Surf. Sci., Vol. 400, pp. 530-536, 2017. ##
[47]. Enzweiler H., Yassue Cordeiro P. H., Schwaab M., Barbosa Coutinho E., Olsen S. and Fernandes N. R. C., “Catalyst concentration, ethanol content and initial pH effects on hydrogen production by photocatalytic water splitting,” J. Photoch Photobio A., Vol. 388, pp. 112051, 2020. ##