A composite nanomaterial of ZnO impregnated by, e.g., a green copper phthalocyanine compound (CuPc) can be an efficient solar light photocatalyst for water remediation. The composite may include hollow shell microspheres and hollow nanospheres of CuPc-ZnO. CuPc may function as a templating and/or structure modifying agent, e.g., for forming hollow microspheres and/or nanospheres of ZnO particles. The composite can photocatalyze the degradation of organic pollutants such as crystal violet (CV) and 2,4-dichlorophenoxyacetic acid as well as microbes in water under solar light irradiation. The ZnO—CuPc composite can be stable and recyclable under solar irradiation.

The present invention provides a compound represented by formula (I) or formula (II) capable of reducing the color difference before and after post-baking.

##STR00001##

[In the formula (I), R.sup.1 represents a C2-C20 unsaturated hydrocarbon group optionally having a substituent; R.sup.2 represents a hydrogen atom, a C1-C20 hydrocarbon group optionally having a substituent, or a single bond connecting Z.sup.2 and R.sup.1; and Z.sup.1 and Z.sup.2 each independently represent a single bond or an oxygen atom, and in the formula (II), R.sup.3 represents a C2-C20 unsaturated hydrocarbon group optionally having a substituent; and Z.sup.3 represents a single bond or an oxygen atom].

The present invention provides a compound represented by formula (I) or formula (II) capable of reducing the color difference before and after post-baking.

##STR00001##

[In the formula (I), R.sup.1 represents a C2-C20 unsaturated hydrocarbon group optionally having a substituent; R.sup.2 represents a hydrogen atom, a C1-C20 hydrocarbon group optionally having a substituent, or a single bond connecting Z.sup.2 and R.sup.1; and Z.sup.1 and Z.sup.2 each independently represent a single bond or an oxygen atom, and in the formula (II), R.sup.3 represents a C2-C20 unsaturated hydrocarbon group optionally having a substituent; and Z.sup.3 represents a single bond or an oxygen atom].

A composite nanomaterial of ZnO impregnated by, e.g., a green copper phthalocyanine compound (CuPc) can be an efficient solar light photocatalyst for water remediation. The composite may include hollow shell microspheres and hollow nanospheres of CuPc-ZnO. CuPc may function as a templating and/or structure modifying agent, e.g., for forming hollow microspheres and/or nanospheres of ZnO particles. The composite can photocatalyze the degradation of organic pollutants such as crystal violet (CV) and 2,4-dichlorophenoxyacetic acid as well as microbes in water under solar light irradiation. The ZnO—CuPc composite can be stable and recyclable under solar irradiation.

The present invention provides a novel compound represented by formula (I) or formula (II) capable of reducing the color difference before and after post-baking.

##STR00001##

[In the formula (I), Y.sup.1 and Z.sup.1 each independently represent an oxygen atom or a sulfur atom, and Z.sup.2 and Z.sup.3 each independently represent a single bond, an oxygen atom, or a sulfur atom, provided that at least one of Y.sup.1, Z.sup.1, Z.sup.2, and Z.sup.3 represents a sulfur atom, and in the formula (II), Y2 and Z4 each independently represent an oxygen atom or a sulfur atom, and Z5 represents a single bond, an oxygen atom, or a sulfur atom, provided that at least one of Y2, Z4, and Z5 represents a sulfur atom.]

A composite nanomaterial of ZnO impregnated by, e.g., a green copper phthalocyanine compound (CuPc) can be an efficient solar light photocatalyst for water remediation. The composite may include hollow shell microspheres and hollow nanospheres of CuPc-ZnO. CuPc may function as a templating and/or structure modifying agent, e.g., for forming hollow microspheres and/or nanospheres of ZnO particles. The composite can photocatalyze the degradation of organic pollutants such as crystal violet (CV) and 2,4-dichlorophenoxyacetic acid as well as microbes in water under solar light irradiation. The ZnO—CuPc composite can be stable and recyclable under solar irradiation.

Disclosed herein are phthalocyanine dyes, and conjugates thereof, useful as fluorescent reporters for bioassays, for optical imaging and as therapeutic conjugates as the photosensitizing agents in light-based therapies including photoimmuno therapy (PIT). Certain phthalocyanine dyes disclosed herein are water soluble, and possess photophysical and photochemical profiles useful for use in imaging or therapy.

Provided are a color filter including a colored pixel A including an aluminum phthalocyanine pigment and an ultraviolet absorbing layer which is provided on an optical path on a light incident side of the colored pixel A and has a wavelength region having a transmittance of 20% or less in a wavelength range of 300 to 450 nm, in which a transmittance in a wavelength region of 550 to 800 nm is 80% or more; and a solid-state imaging element and an image display device which include the color filter.

The present invention provides an optical purification layer, an edge-lit backlight module, and a polarizer. The material of the optical purification layer includes an organic absorbing dye for absorbing cyan light and yellow orange light having a wavelength range of 560-610 nm. The edge-lit backlight module includes a back plate, a reflector, a light guide plate, an edge light source, and an optical film module stacked, wherein the optical purification layer is provided between the edge light source and the light guide plate, or the optical purification layer is further provided between the light guide plate and the diffuse reflection layer, or the light guide plate includes a material of the optical purification layer.

A composite nanomaterial of ZnO impregnated by, e.g., a green copper phthalocyanine compound (CuPc) can be an efficient solar light photocatalyst for water remediation. The composite may include hollow shell microspheres and hollow nanospheres of CuPc-ZnO. CuPc may function as a templating and/or structure modifying agent, e.g., for forming hollow microspheres and/or nanospheres of ZnO particles. The composite can photocatalyze the degradation of organic pollutants such as crystal violet (CV) and 2,4-dichlorophenoxyacetic acid as well as microbes in water under solar light irradiation. The ZnOCuPc composite can be stable and recyclable under solar irradiation.