32results about How to "Efficient light-to-heat conversion efficiency" patented technology

The invention provides a cell membrane coated Au-Fe 3 o 4 The targeted nanomaterial and its preparation method and application belong to the technical field of targeted nanomaterials. Targeted nanomaterial cancer cell membrane provided by the present invention and Au-Fe wrapped in the cancer cell membrane 3 o 4 Nanoparticles, tannic acid and phorbol 12‑myristate 13‑acetate. PMA can effectively stimulate cells to produce H 2 o 2 and reactive oxygen species 2 ‑ , can suppress the insufficient H in cancer cells 2 o 2 Supplement to supplement raw materials for Fenton reaction; Fe 3 o 4 Can be partially decomposed in the presence of tannic acid to form Fe 2+ and Fe 3+ , Fe 2+ Can catalyze H in cancer cells 2 o 2 Decomposed into hydroxyl radicals, TA can promote Fe 3 o 4 Produced Fe 3+ to Fe 2+ Rapid transformation; at the same time, Au and Fe 3 o 4 It has good photothermal conversion efficiency and can give full play to the therapeutic effect of PTT.

The invention discloses a polysiloxane aerogel composite material for efficient water evaporation. The polysiloxane aerogel composite material uses cerium-doped nano-powder as supporting powder and hydrophilic polysiloxane aerogel as a supporting carrier, and a cerium-doped nano-powder is an efficient photothermal conversion material. The hydrophilically modified polysiloxane aerogel has unique structural characteristics, substrate loading can be easily realized, meanwhile, the aerogel has the advantages that the thermal conductivity is low and a 3D porous structure is realized and the salt are not prone to being enriched and crystallized, the rapid passing of water vapor is realized, and the characteristics of efficient light absorption, light conversion, water transport and water evaporation are achieved. The invention further discloses a preparation method of the polysiloxane aerogel composite material for efficient water evaporation and application of the material in seawater desalination or industrial sewage treatment.

The invention relates to a charred rice husk foam photothermal material and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: adding 2 to 8 parts of charred rice husks by mass into 100 parts of de-ionized water by mass and uniformly mixing; adding 2 to 2.5 parts of sodium dodecyl benzenesulfonate by mass, 2 to 2.5 parts of dodecanol by mass and 2 to 2.5 parts of resin glue by mass; stirring for 10 to 20min under the conditions that the temperature is 40 to 60 DEG C and the rotary speed is 100 to 200r / min, so as to obtain a mixed solution; stirring the mixed solution for 15 to 20min under the condition that the rotary speed is 1500 to 2000r / min; then adding 3 to 12 parts of a binding agent by mass into the stirred mixed solution; continually stirring for 5 to 10min to obtain charred rice husk foam slurry; pouring and molding the charred rice husk foam slurry and freezing and drying for 6 to 12h; and drying for 18 to 24h under the condition that the temperature is 80 to 100 DEG C to prepare the charred rice husk foam photothermal material. The preparation method provided by the invention has a simple technology andlow cost; and the prepared charred rice husk foam photothermal material has high water evaporation efficiency and photothermal conversion efficiency.