Open AccessModification of morphology and optic properties of TiO2 as photoreforming catalyst for H2 production from biomass derivatives: a review
Author(s) -
Didi Dwi Anggoro,
Wirda Udaibah,
Aji Prasetyaningrum
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1053/1/012055
Subject(s) - photocatalysis , materials science , biomass (ecology) , catalysis , hydrogen production , nanotechnology , raw material , renewable energy , inert , chemical engineering , nanomaterials , biohydrogen , band gap , doping , solar fuel , surface modification , chemistry , organic chemistry , oceanography , optoelectronics , engineering , electrical engineering , geology
Hydrogen is one of the solutions to overcome the problems facing the world today, the energy crisis and a decrease in environmental quality. Its has high chemical energy per mass and its combustion only results water and does not emit greenhouse gas. Nevertheless, hydrogen doesn’t exist in nature as H 2 form. Hence, it requires a sustainable production methods. Biomass (lignocellulose) and its derivatives can be renewable feedstock for producing biohydrogen via clean process i.e photoreforming. One of the keys to the success of this technology is the development of suitable photocatalysts that are able to maximize light harvesting from solar and hydrogen production. TiO 2 is the establish material because of its high photocatalytic activity, not toxic, biologically and chemically inert. Its main drawback are its band gap value (ca. 3.2 eV) and fast recombination of electron–hole that detrimental to the photocatalytic activity. The alternative to overcome these problems are modification of TiO 2 by nanotubes structure and doping of metals. In this paper, we will review about TiO 2 nanotubes and its preparation strategies. Then, we will describe role of metal to enhance photocatalytic performance of TiO 2 nanotubes. The Impact of both modification to morphology and optic properties and enhancement of H 2 production from biomass and its derivatives will be study. The future direction for photoreforming of biomass and its derivatives were also suggested. Modification of Titania by nanotube structure and doping it with bi-metal consist of transition metal like Ni-Cu opens up opportunities and challenges for other researchers.