Synthesis and X-ray responsivity of Zn _0.75 Cd _0.25 Te nanoribbons

Enhanced photodegradation of methylene blue with alkaline and transition‐metal ferrite nanophotocatalysts under direct sun light irradiation

“…For the identification of such species, we selected ZnFO and applied three typical scavengers, namely p-benzoquinone (BQ), ammonium oxalate (AO), and tert-butyl alcohol (tBA), to suppress the production of •O 2− , hole, and •OH, respectively, under direct sunlight irradiation. [36][37][38] It is clear from Figure 7a that the photocatalytic activities slightly decreased in the presence of BQ and AO, indicating that both •O 2− and hole are not involved in the degradation of MB. However, a marked decrease in the degradation activity is observed when tBA is used as scavenger.…”

Direct femtosecond laser surface nano/microstructuring and its applications

“…The possibility of material nanoprocessing based on femtosecond laser pulse ablation (i.e., material ejection from the irradiated sample [1]) was first shown in [2,3]. Subsequently, several femtosecond laser techniques have been developed for surface nanostructuring such as the mask projection technique [4], near-field ablation [5][6][7][8], laser-assisted chemical etching [9], nanotexturing by deposition from a femtosecond laser ablation plume [10][11][12][13][14], nanostructuring of thin metal films by femtosecond laser-induced melt [15][16][17], plasmonic nanoablation [18], direct femtosecond laser ablation [14,19,20], and interferometric femtosecond laser ablation [21][22][23][24][25][26]. In a number of studies, it was found that laser-induced periodic surface structures (LIPSS) that had previously been generated using long pulse lasers [27][28][29][30][31][32][33] can be also produced by femtosecond laser pulses on semiconductors [34][35][36][37], glasses [38,39], metals [14,[40]…”

Boric acid incorporated on the surface of reactive nanosilica providing a nano‐crosslinker with potential in guar gum fracturing fluid

“…It can be seen that the nano-crosslinker and reactive SiO 2 have the same weight loss of 4% in the range of 25-130 8C, which is due to the volatilization of absorbed water. Besides, their weight loss in the range of 130-700 8C is due to the decomposition and breakage of organic carbon chain on the surface of silica, 15 and the nano-crosslinker exhibits a much higher weight loss (13%) than reactive SiO 2 (10%) in this range 130400 8C, which indicates that the former contains a higher mass fraction of organic carbon chain than the latter. Moreover, the nano-crosslinker and the reactive have the same weight loss of 6% in the range of 400-700 8C, which indicates both of them have the same mass fraction of organic carbon chain.…”

“…The reactive nano-SiO 2 was prepared with in situ surface modification method. 15 Briefly, 40 g of sodium metasilicate was dissolved in 120 mL of deionized water under 30 min of magnetic stirring at 40 8C. Into the resultant solution was dripped dilute hydrochloric acid to adjust the pH to be about 9, thereby allowing the reaction solution to turn turbid.…”