Bilayer film electrode of brookite TiO2 particles with different morphology to improve the performance of pure brookite-based dye-sensitized solar cells

Fabrication of Ni nanoclusters-modified brookite TiO2 quasi nanocubes and its photocatalytic hydrogen evolution performance

“…6(b)), which contains mixed crystal of anatase and rutile phases in a ratio of ca. 3:1 with an average particle size of ∼24 nm, and was extensively used as reference in the fields of photocatalysis and dye-sensitized solar cells [49,50]. This result is consistent with the previous reports on brookite TiO 2 usually exhibiting better photoactivity than anatase or rutile [11−13].…”

One‐Pot Synthesis of Cu‐Nanocluster‐Decorated Brookite TiO2Quasi‐Nanocubes for Enhanced Activity and Selectivity of CO2 Photoreduction to CH4

“…[18] When used as photoanode materials of DSSCs, significantly improved photovoltaic conversion efficiencies were obtained. [18,19] The above investigations imply that brookite TiO 2 would have betterp hotocatalytic and photoelectrical conversion properties than anatase and rutile. [13][14][15][16][17][18][19][20][21] Although TiO 2 -based materials are widely applied in the field of photocatalysis, [22][23][24][25][26] the photoactivities are still quite low due to its wide band gap, fast charger ecombination, and the possible reverse reactiono ft he reduction products.…”

“…[18,19] The above investigations imply that brookite TiO 2 would have betterp hotocatalytic and photoelectrical conversion properties than anatase and rutile. [13][14][15][16][17][18][19][20][21] Although TiO 2 -based materials are widely applied in the field of photocatalysis, [22][23][24][25][26] the photoactivities are still quite low due to its wide band gap, fast charger ecombination, and the possible reverse reactiono ft he reduction products. [3][4][5][27][28][29][30] To overcome these problems,s everals trategiess uch as metal/ metal oxide loading, cation/anion doping, surface treatment and modification have been developed to modify TiO 2 .…”

“…As can be seen, pristineB TN and the Cu-BTN products have a quasi-nanocube morphology and as mooth surfacew ith ap articles ize range of 20-60 nm, whichi ss imilar to our previous observations. [18][19][20] These resultsi ndicate that the addition of aC uCl 2 solution to the presenth ydrothermalr eaction solution does not alter the nanocube-like morphology of brookite TiO 2 .A ss hown in Fig Figure 5c)c onfirmt hat Cu-BTN has high crystallinity and phase purity,a nd the major lattice spacings of % 0.346 nm confirm the (111)p laneso fb rookite, and thus, the edge of the nanocubec an be attributed to the {210} plane. Similarly,t he HRTEM image of single pristineB TN ( Figure 5d) showsarelatively sharp edges and smooth surfaces.…”

“…It is believed that this studydemonstrates somei nsight into non-noblem etallic Cu and brookite TiO 2 for promising low-cost photocatalytic CO 2 conversion applications. [17][18][19] No other TiO 2 crystal phase can be observed from those XRD patterns, indicating that Cu-BTN products are still brookite TiO 2 with high phase purity.M oreover,t hose diffraction peaks of Cu-BTN products show no obvious shift as compared to the pristine BTN, and no peak that can be as-signed to Cu, CuO, Cu 2 Oo ro ther Cu compound is detected (even for 2.5 %C u-BTN), suggesting that the Cu species do not incorporate into the brookite lattice, and probablyd ecorate on the BTN surfaces with good dispersity andl ow loading content. Moreover,X RD Rietveld refinement results ( Figure S1 and Ta ble S1)a lso indicatet hat the lattice parameters of pristine BTN and 1.5 %C u-BTN are quite similar.…”