ZnO nanoparticles were prepared by hydrothermal method. The modified Hummer process was then used to prepare go. ZnO-GO com posites mixed produce different ratios of ZnO-GO, characteris ed and their photocatalytic properties investigated using rhodamine B as the target degradation species. results showed that r ates 41.96% 84.42% for nano-ZnO 7% composites, respectively, when illuminated with x...

In this paper by using numerical evaluation the effect of balancing drupes of water hammer on tunnels lining is considered. In case of not arrangment of these reservoirs, the tunnel lining will be damaged of cyclic powers of water hammer. In this research, function of balancing reservoir of water hammer on cover of tunnels to the barriers’ turbine is simulated by numerical methods and Plaxis 3D...

• Graphene Oxide, enhanced Hummer technique, EDAX, FT-IR, Thin film, XPS, Raman. oxide (GO) sheets possess a 2D filiform structure and were indigenously synthesized via the methodology. It is accepted that redox approach may be distinctive technique to fabricate GO films as sheet on an expanded scale. Instrumental characterizations showed ready during this study had bi-directional lamellar laye...

Vật liệu graphen oxit (GO) được tổng hợp bằng phương pháp Hummer cải tiến và biến tính với mangan đioxit (MnO2) hóa học để thu vật tổ MnO2/GO. Một số chất đặc trưng của đánh giá phổ hồng ngoại, UV-Vis, hiển vi điện tử quét kết quang tán xạ năng lượng tia X ảnh mapping. Các thông trong di lắng đọng (EPD) như pH, thế phân, thời gian nồng độ clorua natri khối đã nghiên cứu. MnO2/GO có khả loại màu...

Rolled graphene oxide (roll-GO) with anew morphological properties than normal is synthesized using modified Hummer. Then, the roll-GO/PANI composite prepared through adsorption of roll-GO on surface PANI film, that performed oxidative polymerization method. The developed displays a small bandgap 1.9 eV and shows high optical property extends wide region from UV to IR regions. chemical structur...

The Hummer process is applied to generate graphene oxide from carbon stocks’ discharged Zn-C batteries waste. SiO2 produced rice husks through the wet process. Subsequently, reacted with form silica/graphene (SiO2/GO) as a sorbent material. XRD, BET, SEM, EDX, and FTIR were employed characterize SiO2/GO. Factors affecting U(VI) sorption on SiO2/GO, including pH, time, dosage of ions’ concentrat...

Abstract The mixed compound zinc sulfide (ZnS/rGO) nanoparticles were synthesized by the physical method laser ablation From there, crystal structure and crystallite size of X-ray diffraction (XRD) particles determined (D =8.35nm). optical properties have also been studied visible ultraviolet absorption spectrum. Where graphen oxide was prepared a hummer method, after mixing it with sulfide, fo...

The paper presents the integrated application of two methods during testing HVAC system efficiency in cabins HUMMER ?1151A1 and OAR 1RL-128D off-road vehicles. Spatial measurements change air temperature per time have been performed at three vertical levels (head, knees, feet) driver passengers, which totals to 15 measuring points vehicle. main goal was evaluate accurately heating cooling relat...

In this work, an enzymatic liquid-gated field-effect-transistor sensor based on chemically reduced graphene oxide film was develop for determination of acetylthiocholine in aqueous conditions. The device designed with interdigitated electrode configuration and then manufactured by combining lithography chemical vapor deposition techniques clean room. Graphene material (prepared Hummer method) u...